Home / 918,143.80-1,377,215.70-558,892.60

Finding the Fourth Proportional to 918,143.80, 1,377,215.70 and 558,892.60

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Solution

The fourth proportional to 918,143.80, 1,377,215.70 and 558,892.60 is: 838,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,143.80 : 1,377,215.70 = 558,892.60 : x
  2. Step 2: Convert to fraction form
    918,143.80/1,377,215.70 = 558,892.60/x
  3. Step 3: Cross multiply
    918,143.80x = 1,377,215.70 × 558,892.60
  4. Step 4: Simplify right side
    918,143.80x = 769,715,663,333.82
  5. Step 5: Solve for x
    x = 769,715,663,333.82/918,143.80
  6. Step 6: Final answer
    x = 838,338.90

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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.