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Finding the Fourth Proportional to 482,718.48, 724,143.48 and 280,409.52

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Solution

The fourth proportional to 482,718.48, 724,143.48 and 280,409.52 is: 420,652.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,718.48 : 724,143.48 = 280,409.52 : x
  2. Step 2: Convert to fraction form
    482,718.48/724,143.48 = 280,409.52/x
  3. Step 3: Cross multiply
    482,718.48x = 724,143.48 × 280,409.52
  4. Step 4: Simplify right side
    482,718.48x = 203,056,725,637.93
  5. Step 5: Solve for x
    x = 203,056,725,637.93/482,718.48
  6. Step 6: Final answer
    x = 420,652.48

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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.