Home / 1,123,726.30-1,685,589.45-745,812.70

Finding the Fourth Proportional to 1,123,726.30, 1,685,589.45 and 745,812.70

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Solution

The fourth proportional to 1,123,726.30, 1,685,589.45 and 745,812.70 is: 1,118,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,726.30 : 1,685,589.45 = 745,812.70 : x
  2. Step 2: Convert to fraction form
    1,123,726.30/1,685,589.45 = 745,812.70/x
  3. Step 3: Cross multiply
    1,123,726.30x = 1,685,589.45 × 745,812.70
  4. Step 4: Simplify right side
    1,123,726.30x = 1,257,134,018,796.01
  5. Step 5: Solve for x
    x = 1,257,134,018,796.01/1,123,726.30
  6. Step 6: Final answer
    x = 1,118,719.05

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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.