Home / 1,247,740.52-1,721,887.10-674,780.69

Finding the Fourth Proportional to 1,247,740.52, 1,721,887.10 and 674,780.69

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Solution

The fourth proportional to 1,247,740.52, 1,721,887.10 and 674,780.69 is: 931,200.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,740.52 : 1,721,887.10 = 674,780.69 : x
  2. Step 2: Convert to fraction form
    1,247,740.52/1,721,887.10 = 674,780.69/x
  3. Step 3: Cross multiply
    1,247,740.52x = 1,721,887.10 × 674,780.69
  4. Step 4: Simplify right side
    1,247,740.52x = 1,161,896,171,431.77
  5. Step 5: Solve for x
    x = 1,161,896,171,431.77/1,247,740.52
  6. Step 6: Final answer
    x = 931,200.16

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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.