Home / 1,707,892.40-2,559,866.52-642,254.78

Finding the Fourth Proportional to 1,707,892.40, 2,559,866.52 and 642,254.78

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Solution

The fourth proportional to 1,707,892.40, 2,559,866.52 and 642,254.78 is: 962,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,707,892.40 : 2,559,866.52 = 642,254.78 : x
  2. Step 2: Convert to fraction form
    1,707,892.40/2,559,866.52 = 642,254.78/x
  3. Step 3: Cross multiply
    1,707,892.40x = 2,559,866.52 × 642,254.78
  4. Step 4: Simplify right side
    1,707,892.40x = 1,644,086,508,631.97
  5. Step 5: Solve for x
    x = 1,644,086,508,631.97/1,707,892.40
  6. Step 6: Final answer
    x = 962,640.57

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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.