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Finding the Fourth Proportional to 570,949.70, 787,853.13 and 316,253.30

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Solution

The fourth proportional to 570,949.70, 787,853.13 and 316,253.30 is: 436,397.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,949.70 : 787,853.13 = 316,253.30 : x
  2. Step 2: Convert to fraction form
    570,949.70/787,853.13 = 316,253.30/x
  3. Step 3: Cross multiply
    570,949.70x = 787,853.13 × 316,253.30
  4. Step 4: Simplify right side
    570,949.70x = 249,161,152,277.83
  5. Step 5: Solve for x
    x = 249,161,152,277.83/570,949.70
  6. Step 6: Final answer
    x = 436,397.73

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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.