Home / 1,386,209.70-2,079,314.55-756,353.70

Finding the Fourth Proportional to 1,386,209.70, 2,079,314.55 and 756,353.70

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Solution

The fourth proportional to 1,386,209.70, 2,079,314.55 and 756,353.70 is: 1,134,530.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,209.70 : 2,079,314.55 = 756,353.70 : x
  2. Step 2: Convert to fraction form
    1,386,209.70/2,079,314.55 = 756,353.70/x
  3. Step 3: Cross multiply
    1,386,209.70x = 2,079,314.55 × 756,353.70
  4. Step 4: Simplify right side
    1,386,209.70x = 1,572,697,253,356.34
  5. Step 5: Solve for x
    x = 1,572,697,253,356.34/1,386,209.70
  6. Step 6: Final answer
    x = 1,134,530.55

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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.