Home / 497,960.08-687,243-283,132.33

Finding the Fourth Proportional to 497,960.08, 687,243 and 283,132.33

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Solution

The fourth proportional to 497,960.08, 687,243 and 283,132.33 is: 390,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,960.08 : 687,243 = 283,132.33 : x
  2. Step 2: Convert to fraction form
    497,960.08/687,243 = 283,132.33/x
  3. Step 3: Cross multiply
    497,960.08x = 687,243 × 283,132.33
  4. Step 4: Simplify right side
    497,960.08x = 194,580,711,866.19
  5. Step 5: Solve for x
    x = 194,580,711,866.19/497,960.08
  6. Step 6: Final answer
    x = 390,755.64

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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.