Home / 477,254.43-657,999.96-390,895.27

Finding the Fourth Proportional to 477,254.43, 657,999.96 and 390,895.27

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Solution

The fourth proportional to 477,254.43, 657,999.96 and 390,895.27 is: 538,934.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,254.43 : 657,999.96 = 390,895.27 : x
  2. Step 2: Convert to fraction form
    477,254.43/657,999.96 = 390,895.27/x
  3. Step 3: Cross multiply
    477,254.43x = 657,999.96 × 390,895.27
  4. Step 4: Simplify right side
    477,254.43x = 257,209,068,913.33
  5. Step 5: Solve for x
    x = 257,209,068,913.33/477,254.43
  6. Step 6: Final answer
    x = 538,934.90

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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.