Home / 422,507.52-630,485.49-377,640

Finding the Fourth Proportional to 422,507.52, 630,485.49 and 377,640

Calculator

Solution

The fourth proportional to 422,507.52, 630,485.49 and 377,640 is: 563,532.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,507.52 : 630,485.49 = 377,640 : x
  2. Step 2: Convert to fraction form
    422,507.52/630,485.49 = 377,640/x
  3. Step 3: Cross multiply
    422,507.52x = 630,485.49 × 377,640
  4. Step 4: Simplify right side
    422,507.52x = 238,096,540,443.60
  5. Step 5: Solve for x
    x = 238,096,540,443.60/422,507.52
  6. Step 6: Final answer
    x = 563,532.08

Related Problems

Find fourth proportional to 211,253.76, 315,242.75 and 188,820
Half scale
Find fourth proportional to 845,015.04, 1,260,970.98 and 755,280
Double scale
Find fourth proportional to 422,508.52, 630,486.98 and 377,641
Similar ratio
Find fourth proportional to 633,761.28, 945,728.24 and 566,460
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.