Home / 918,231.80-1,377,347.70-558,980.60

Finding the Fourth Proportional to 918,231.80, 1,377,347.70 and 558,980.60

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Solution

The fourth proportional to 918,231.80, 1,377,347.70 and 558,980.60 is: 838,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,231.80 : 1,377,347.70 = 558,980.60 : x
  2. Step 2: Convert to fraction form
    918,231.80/1,377,347.70 = 558,980.60/x
  3. Step 3: Cross multiply
    918,231.80x = 1,377,347.70 × 558,980.60
  4. Step 4: Simplify right side
    918,231.80x = 769,910,643,754.62
  5. Step 5: Solve for x
    x = 769,910,643,754.62/918,231.80
  6. Step 6: Final answer
    x = 838,470.90

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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.