Home / 517,484-776,226-143,507

Finding the Fourth Proportional to 517,484, 776,226 and 143,507

Calculator

Solution

The fourth proportional to 517,484, 776,226 and 143,507 is: 215,260.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,484 : 776,226 = 143,507 : x
  2. Step 2: Convert to fraction form
    517,484/776,226 = 143,507/x
  3. Step 3: Cross multiply
    517,484x = 776,226 × 143,507
  4. Step 4: Simplify right side
    517,484x = 111,393,864,582
  5. Step 5: Solve for x
    x = 111,393,864,582/517,484
  6. Step 6: Final answer
    x = 215,260.50

Related Problems

Find fourth proportional to 258,742, 388,113 and 71,753.50
Half scale
Find fourth proportional to 1,034,968, 1,552,452 and 287,014
Double scale
Find fourth proportional to 517,485, 776,227.50 and 143,508
Similar ratio
Find fourth proportional to 776,226, 1,164,339 and 215,260.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.