Home / 1,105,299-1,525,312.62-628,371

Finding the Fourth Proportional to 1,105,299, 1,525,312.62 and 628,371

Calculator

Solution

The fourth proportional to 1,105,299, 1,525,312.62 and 628,371 is: 867,151.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,299 : 1,525,312.62 = 628,371 : x
  2. Step 2: Convert to fraction form
    1,105,299/1,525,312.62 = 628,371/x
  3. Step 3: Cross multiply
    1,105,299x = 1,525,312.62 × 628,371
  4. Step 4: Simplify right side
    1,105,299x = 958,462,216,342.02
  5. Step 5: Solve for x
    x = 958,462,216,342.02/1,105,299
  6. Step 6: Final answer
    x = 867,151.98

Related Problems

Find fourth proportional to 552,649.50, 762,656.31 and 314,185.50
Half scale
Find fourth proportional to 2,210,598, 3,050,625.24 and 1,256,742
Double scale
Find fourth proportional to 1,105,300, 1,525,314 and 628,372
Similar ratio
Find fourth proportional to 1,657,948.50, 2,287,968.93 and 942,556.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.