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Finding the Fourth Proportional to 802,597.91, 1,107,555.72 and 440,013.80

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Solution

The fourth proportional to 802,597.91, 1,107,555.72 and 440,013.80 is: 607,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,597.91 : 1,107,555.72 = 440,013.80 : x
  2. Step 2: Convert to fraction form
    802,597.91/1,107,555.72 = 440,013.80/x
  3. Step 3: Cross multiply
    802,597.91x = 1,107,555.72 × 440,013.80
  4. Step 4: Simplify right side
    802,597.91x = 487,339,801,068.94
  5. Step 5: Solve for x
    x = 487,339,801,068.94/802,597.91
  6. Step 6: Final answer
    x = 607,202.93

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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.