Home / 498,127.60-687,208.08-326,087.65

Finding the Fourth Proportional to 498,127.60, 687,208.08 and 326,087.65

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Solution

The fourth proportional to 498,127.60, 687,208.08 and 326,087.65 is: 449,864.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,127.60 : 687,208.08 = 326,087.65 : x
  2. Step 2: Convert to fraction form
    498,127.60/687,208.08 = 326,087.65/x
  3. Step 3: Cross multiply
    498,127.60x = 687,208.08 × 326,087.65
  4. Step 4: Simplify right side
    498,127.60x = 224,090,067,868.21
  5. Step 5: Solve for x
    x = 224,090,067,868.21/498,127.60
  6. Step 6: Final answer
    x = 449,864.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.