Home / 918,268.80-1,377,403.20-664,358.10

Finding the Fourth Proportional to 918,268.80, 1,377,403.20 and 664,358.10

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Solution

The fourth proportional to 918,268.80, 1,377,403.20 and 664,358.10 is: 996,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,268.80 : 1,377,403.20 = 664,358.10 : x
  2. Step 2: Convert to fraction form
    918,268.80/1,377,403.20 = 664,358.10/x
  3. Step 3: Cross multiply
    918,268.80x = 1,377,403.20 × 664,358.10
  4. Step 4: Simplify right side
    918,268.80x = 915,088,972,885.92
  5. Step 5: Solve for x
    x = 915,088,972,885.92/918,268.80
  6. Step 6: Final answer
    x = 996,537.15

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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.