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Finding the Fourth Proportional to 538,373.04, 807,572.52 and 257,581.68

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Solution

The fourth proportional to 538,373.04, 807,572.52 and 257,581.68 is: 386,378.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,373.04 : 807,572.52 = 257,581.68 : x
  2. Step 2: Convert to fraction form
    538,373.04/807,572.52 = 257,581.68/x
  3. Step 3: Cross multiply
    538,373.04x = 807,572.52 × 257,581.68
  4. Step 4: Simplify right side
    538,373.04x = 208,015,886,423.43
  5. Step 5: Solve for x
    x = 208,015,886,423.43/538,373.04
  6. Step 6: Final answer
    x = 386,378.72

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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.