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Finding the Fourth Proportional to 418,691.64, 577,782.08 and 237,420.12

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Solution

The fourth proportional to 418,691.64, 577,782.08 and 237,420.12 is: 327,632.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,691.64 : 577,782.08 = 237,420.12 : x
  2. Step 2: Convert to fraction form
    418,691.64/577,782.08 = 237,420.12/x
  3. Step 3: Cross multiply
    418,691.64x = 577,782.08 × 237,420.12
  4. Step 4: Simplify right side
    418,691.64x = 137,177,090,767.45
  5. Step 5: Solve for x
    x = 137,177,090,767.45/418,691.64
  6. Step 6: Final answer
    x = 327,632.74

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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.