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Finding the Fourth Proportional to 672,001.60, 1,009,168.80 and 357,073.60

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Solution

The fourth proportional to 672,001.60, 1,009,168.80 and 357,073.60 is: 536,230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,001.60 : 1,009,168.80 = 357,073.60 : x
  2. Step 2: Convert to fraction form
    672,001.60/1,009,168.80 = 357,073.60/x
  3. Step 3: Cross multiply
    672,001.60x = 1,009,168.80 × 357,073.60
  4. Step 4: Simplify right side
    672,001.60x = 360,347,536,423.68
  5. Step 5: Solve for x
    x = 360,347,536,423.68/672,001.60
  6. Step 6: Final answer
    x = 536,230.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.