Home / 657,435.52-907,265.28-385,442.56

Finding the Fourth Proportional to 657,435.52, 907,265.28 and 385,442.56

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Solution

The fourth proportional to 657,435.52, 907,265.28 and 385,442.56 is: 531,913.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,435.52 : 907,265.28 = 385,442.56 : x
  2. Step 2: Convert to fraction form
    657,435.52/907,265.28 = 385,442.56/x
  3. Step 3: Cross multiply
    657,435.52x = 907,265.28 × 385,442.56
  4. Step 4: Simplify right side
    657,435.52x = 349,698,652,122.32
  5. Step 5: Solve for x
    x = 349,698,652,122.32/657,435.52
  6. Step 6: Final answer
    x = 531,913.23

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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.