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Finding the Fourth Proportional to 493,580.97, 740,416.64 and 138,592.59

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Solution

The fourth proportional to 493,580.97, 740,416.64 and 138,592.59 is: 207,901.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,580.97 : 740,416.64 = 138,592.59 : x
  2. Step 2: Convert to fraction form
    493,580.97/740,416.64 = 138,592.59/x
  3. Step 3: Cross multiply
    493,580.97x = 740,416.64 × 138,592.59
  4. Step 4: Simplify right side
    493,580.97x = 102,616,259,123.74
  5. Step 5: Solve for x
    x = 102,616,259,123.74/493,580.97
  6. Step 6: Final answer
    x = 207,901.57

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1.5x scale

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.