Home / 687,502.45-948,927.77-469,799.24

Finding the Fourth Proportional to 687,502.45, 948,927.77 and 469,799.24

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Solution

The fourth proportional to 687,502.45, 948,927.77 and 469,799.24 is: 648,442.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,502.45 : 948,927.77 = 469,799.24 : x
  2. Step 2: Convert to fraction form
    687,502.45/948,927.77 = 469,799.24/x
  3. Step 3: Cross multiply
    687,502.45x = 948,927.77 × 469,799.24
  4. Step 4: Simplify right side
    687,502.45x = 445,805,545,160.90
  5. Step 5: Solve for x
    x = 445,805,545,160.90/687,502.45
  6. Step 6: Final answer
    x = 648,442.12

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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.