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Finding the Fourth Proportional to 479,461.73, 661,672.64 and 272,724.77

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Solution

The fourth proportional to 479,461.73, 661,672.64 and 272,724.77 is: 376,368.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,461.73 : 661,672.64 = 272,724.77 : x
  2. Step 2: Convert to fraction form
    479,461.73/661,672.64 = 272,724.77/x
  3. Step 3: Cross multiply
    479,461.73x = 661,672.64 × 272,724.77
  4. Step 4: Simplify right side
    479,461.73x = 180,454,519,981.53
  5. Step 5: Solve for x
    x = 180,454,519,981.53/479,461.73
  6. Step 6: Final answer
    x = 376,368.97

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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.