Home / 1,376,505.70-1,899,821.28-1,029,387.76

Finding the Fourth Proportional to 1,376,505.70, 1,899,821.28 and 1,029,387.76

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Solution

The fourth proportional to 1,376,505.70, 1,899,821.28 and 1,029,387.76 is: 1,420,737.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,505.70 : 1,899,821.28 = 1,029,387.76 : x
  2. Step 2: Convert to fraction form
    1,376,505.70/1,899,821.28 = 1,029,387.76/x
  3. Step 3: Cross multiply
    1,376,505.70x = 1,899,821.28 × 1,029,387.76
  4. Step 4: Simplify right side
    1,376,505.70x = 1,955,652,771,819.53
  5. Step 5: Solve for x
    x = 1,955,652,771,819.53/1,376,505.70
  6. Step 6: Final answer
    x = 1,420,737.14

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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.