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Finding the Fourth Proportional to 482,800.19, 724,200.28 and 257,477.98

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Solution

The fourth proportional to 482,800.19, 724,200.28 and 257,477.98 is: 386,216.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,800.19 : 724,200.28 = 257,477.98 : x
  2. Step 2: Convert to fraction form
    482,800.19/724,200.28 = 257,477.98/x
  3. Step 3: Cross multiply
    482,800.19x = 724,200.28 × 257,477.98
  4. Step 4: Simplify right side
    482,800.19x = 186,465,626,436.93
  5. Step 5: Solve for x
    x = 186,465,626,436.93/482,800.19
  6. Step 6: Final answer
    x = 386,216.97

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Double scale
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Similar ratio
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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.