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Finding the Fourth Proportional to 482,598.27, 666,017.10 and 278,657.78

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Solution

The fourth proportional to 482,598.27, 666,017.10 and 278,657.78 is: 384,565.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,598.27 : 666,017.10 = 278,657.78 : x
  2. Step 2: Convert to fraction form
    482,598.27/666,017.10 = 278,657.78/x
  3. Step 3: Cross multiply
    482,598.27x = 666,017.10 × 278,657.78
  4. Step 4: Simplify right side
    482,598.27x = 185,590,843,197.95
  5. Step 5: Solve for x
    x = 185,590,843,197.95/482,598.27
  6. Step 6: Final answer
    x = 384,565.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.