Home / 918,313.80-1,377,470.70-664,403.10

Finding the Fourth Proportional to 918,313.80, 1,377,470.70 and 664,403.10

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Solution

The fourth proportional to 918,313.80, 1,377,470.70 and 664,403.10 is: 996,604.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,313.80 : 1,377,470.70 = 664,403.10 : x
  2. Step 2: Convert to fraction form
    918,313.80/1,377,470.70 = 664,403.10/x
  3. Step 3: Cross multiply
    918,313.80x = 1,377,470.70 × 664,403.10
  4. Step 4: Simplify right side
    918,313.80x = 915,195,803,239.17
  5. Step 5: Solve for x
    x = 915,195,803,239.17/918,313.80
  6. Step 6: Final answer
    x = 996,604.65

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Similar ratio
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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.