Home / 557,287.23-769,056.29-315,569.73

Finding the Fourth Proportional to 557,287.23, 769,056.29 and 315,569.73

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Solution

The fourth proportional to 557,287.23, 769,056.29 and 315,569.73 is: 435,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,287.23 : 769,056.29 = 315,569.73 : x
  2. Step 2: Convert to fraction form
    557,287.23/769,056.29 = 315,569.73/x
  3. Step 3: Cross multiply
    557,287.23x = 769,056.29 × 315,569.73
  4. Step 4: Simplify right side
    557,287.23x = 242,690,885,790.10
  5. Step 5: Solve for x
    x = 242,690,885,790.10/557,287.23
  6. Step 6: Final answer
    x = 435,486.18

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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.