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Finding the Fourth Proportional to 482,802.60, 724,203.90 and 258,853.80

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Solution

The fourth proportional to 482,802.60, 724,203.90 and 258,853.80 is: 388,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,802.60 : 724,203.90 = 258,853.80 : x
  2. Step 2: Convert to fraction form
    482,802.60/724,203.90 = 258,853.80/x
  3. Step 3: Cross multiply
    482,802.60x = 724,203.90 × 258,853.80
  4. Step 4: Simplify right side
    482,802.60x = 187,462,931,489.82
  5. Step 5: Solve for x
    x = 187,462,931,489.82/482,802.60
  6. Step 6: Final answer
    x = 388,280.70

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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.