Home / 918,335.80-1,377,503.70-664,425.10

Finding the Fourth Proportional to 918,335.80, 1,377,503.70 and 664,425.10

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Solution

The fourth proportional to 918,335.80, 1,377,503.70 and 664,425.10 is: 996,637.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,335.80 : 1,377,503.70 = 664,425.10 : x
  2. Step 2: Convert to fraction form
    918,335.80/1,377,503.70 = 664,425.10/x
  3. Step 3: Cross multiply
    918,335.80x = 1,377,503.70 × 664,425.10
  4. Step 4: Simplify right side
    918,335.80x = 915,248,033,622.87
  5. Step 5: Solve for x
    x = 915,248,033,622.87/918,335.80
  6. Step 6: Final answer
    x = 996,637.65

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Similar ratio
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1.5x scale

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.