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Finding the Fourth Proportional to 1,363,823.52, 1,881,658.80 and 790,748.64

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Solution

The fourth proportional to 1,363,823.52, 1,881,658.80 and 790,748.64 is: 1,090,990.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363,823.52 : 1,881,658.80 = 790,748.64 : x
  2. Step 2: Convert to fraction form
    1,363,823.52/1,881,658.80 = 790,748.64/x
  3. Step 3: Cross multiply
    1,363,823.52x = 1,881,658.80 × 790,748.64
  4. Step 4: Simplify right side
    1,363,823.52x = 1,487,919,137,044.03
  5. Step 5: Solve for x
    x = 1,487,919,137,044.03/1,363,823.52
  6. Step 6: Final answer
    x = 1,090,990.96

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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.