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Finding the Fourth Proportional to 1,013,789.07, 1,519,004.34 and 712,799.10

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Solution

The fourth proportional to 1,013,789.07, 1,519,004.34 and 712,799.10 is: 1,068,017.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,789.07 : 1,519,004.34 = 712,799.10 : x
  2. Step 2: Convert to fraction form
    1,013,789.07/1,519,004.34 = 712,799.10/x
  3. Step 3: Cross multiply
    1,013,789.07x = 1,519,004.34 × 712,799.10
  4. Step 4: Simplify right side
    1,013,789.07x = 1,082,744,926,448.09
  5. Step 5: Solve for x
    x = 1,082,744,926,448.09/1,013,789.07
  6. Step 6: Final answer
    x = 1,068,017.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.