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Finding the Fourth Proportional to 415,456.02, 573,802.24 and 279,253.50

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Solution

The fourth proportional to 415,456.02, 573,802.24 and 279,253.50 is: 385,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,456.02 : 573,802.24 = 279,253.50 : x
  2. Step 2: Convert to fraction form
    415,456.02/573,802.24 = 279,253.50/x
  3. Step 3: Cross multiply
    415,456.02x = 573,802.24 × 279,253.50
  4. Step 4: Simplify right side
    415,456.02x = 160,236,283,827.84
  5. Step 5: Solve for x
    x = 160,236,283,827.84/415,456.02
  6. Step 6: Final answer
    x = 385,687.72

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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.