Home / 977,139.70-1,463,635.95-811,251.70

Finding the Fourth Proportional to 977,139.70, 1,463,635.95 and 811,251.70

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Solution

The fourth proportional to 977,139.70, 1,463,635.95 and 811,251.70 is: 1,215,155.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,139.70 : 1,463,635.95 = 811,251.70 : x
  2. Step 2: Convert to fraction form
    977,139.70/1,463,635.95 = 811,251.70/x
  3. Step 3: Cross multiply
    977,139.70x = 1,463,635.95 × 811,251.70
  4. Step 4: Simplify right side
    977,139.70x = 1,187,377,152,618.62
  5. Step 5: Solve for x
    x = 1,187,377,152,618.62/977,139.70
  6. Step 6: Final answer
    x = 1,215,155.98

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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.