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Finding the Fourth Proportional to 802,672.16, 1,107,708.72 and 453,784.80

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Solution

The fourth proportional to 802,672.16, 1,107,708.72 and 453,784.80 is: 626,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,672.16 : 1,107,708.72 = 453,784.80 : x
  2. Step 2: Convert to fraction form
    802,672.16/1,107,708.72 = 453,784.80/x
  3. Step 3: Cross multiply
    802,672.16x = 1,107,708.72 × 453,784.80
  4. Step 4: Simplify right side
    802,672.16x = 502,661,379,963.46
  5. Step 5: Solve for x
    x = 502,661,379,963.46/802,672.16
  6. Step 6: Final answer
    x = 626,234.97

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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.