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Finding the Fourth Proportional to 709,344.58, 978,639.76 and 546,051.02

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Solution

The fourth proportional to 709,344.58, 978,639.76 and 546,051.02 is: 753,353.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,344.58 : 978,639.76 = 546,051.02 : x
  2. Step 2: Convert to fraction form
    709,344.58/978,639.76 = 546,051.02/x
  3. Step 3: Cross multiply
    709,344.58x = 978,639.76 × 546,051.02
  4. Step 4: Simplify right side
    709,344.58x = 534,387,239,160.56
  5. Step 5: Solve for x
    x = 534,387,239,160.56/709,344.58
  6. Step 6: Final answer
    x = 753,353.52

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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.