Home / 918,290.92-1,377,332.70-319,151.08

Finding the Fourth Proportional to 918,290.92, 1,377,332.70 and 319,151.08

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Solution

The fourth proportional to 918,290.92, 1,377,332.70 and 319,151.08 is: 478,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,290.92 : 1,377,332.70 = 319,151.08 : x
  2. Step 2: Convert to fraction form
    918,290.92/1,377,332.70 = 319,151.08/x
  3. Step 3: Cross multiply
    918,290.92x = 1,377,332.70 × 319,151.08
  4. Step 4: Simplify right side
    918,290.92x = 439,577,218,724.32
  5. Step 5: Solve for x
    x = 439,577,218,724.32/918,290.92
  6. Step 6: Final answer
    x = 478,690.59

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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.