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Finding the Fourth Proportional to 570,412.29, 787,179.57 and 328,654.02

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Solution

The fourth proportional to 570,412.29, 787,179.57 and 328,654.02 is: 453,548.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,412.29 : 787,179.57 = 328,654.02 : x
  2. Step 2: Convert to fraction form
    570,412.29/787,179.57 = 328,654.02/x
  3. Step 3: Cross multiply
    570,412.29x = 787,179.57 × 328,654.02
  4. Step 4: Simplify right side
    570,412.29x = 258,709,730,142.37
  5. Step 5: Solve for x
    x = 258,709,730,142.37/570,412.29
  6. Step 6: Final answer
    x = 453,548.66

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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.