Home / 687,257.32-948,447.66-429,287.08

Finding the Fourth Proportional to 687,257.32, 948,447.66 and 429,287.08

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Solution

The fourth proportional to 687,257.32, 948,447.66 and 429,287.08 is: 592,436.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,257.32 : 948,447.66 = 429,287.08 : x
  2. Step 2: Convert to fraction form
    687,257.32/948,447.66 = 429,287.08/x
  3. Step 3: Cross multiply
    687,257.32x = 948,447.66 × 429,287.08
  4. Step 4: Simplify right side
    687,257.32x = 407,156,326,494.23
  5. Step 5: Solve for x
    x = 407,156,326,494.23/687,257.32
  6. Step 6: Final answer
    x = 592,436.51

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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.