Home / 1,247,740.63-1,721,887.25-674,780.79

Finding the Fourth Proportional to 1,247,740.63, 1,721,887.25 and 674,780.79

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Solution

The fourth proportional to 1,247,740.63, 1,721,887.25 and 674,780.79 is: 931,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,740.63 : 1,721,887.25 = 674,780.79 : x
  2. Step 2: Convert to fraction form
    1,247,740.63/1,721,887.25 = 674,780.79/x
  3. Step 3: Cross multiply
    1,247,740.63x = 1,721,887.25 × 674,780.79
  4. Step 4: Simplify right side
    1,247,740.63x = 1,161,896,441,929.10
  5. Step 5: Solve for x
    x = 1,161,896,441,929.10/1,247,740.63
  6. Step 6: Final answer
    x = 931,200.30

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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.