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Finding the Fourth Proportional to 557,801.70, 769,772.31 and 303,152.90

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Solution

The fourth proportional to 557,801.70, 769,772.31 and 303,152.90 is: 418,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,801.70 : 769,772.31 = 303,152.90 : x
  2. Step 2: Convert to fraction form
    557,801.70/769,772.31 = 303,152.90/x
  3. Step 3: Cross multiply
    557,801.70x = 769,772.31 × 303,152.90
  4. Step 4: Simplify right side
    557,801.70x = 233,358,708,116.20
  5. Step 5: Solve for x
    x = 233,358,708,116.20/557,801.70
  6. Step 6: Final answer
    x = 418,354.24

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1.5x scale

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.