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Finding the Fourth Proportional to 457,807.90, 685,329.45 and 402,511.90

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Solution

The fourth proportional to 457,807.90, 685,329.45 and 402,511.90 is: 602,552.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,807.90 : 685,329.45 = 402,511.90 : x
  2. Step 2: Convert to fraction form
    457,807.90/685,329.45 = 402,511.90/x
  3. Step 3: Cross multiply
    457,807.90x = 685,329.45 × 402,511.90
  4. Step 4: Simplify right side
    457,807.90x = 275,853,259,045.46
  5. Step 5: Solve for x
    x = 275,853,259,045.46/457,807.90
  6. Step 6: Final answer
    x = 602,552.42

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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.