Home / 502,442.32-692,677.56-400,812.72

Finding the Fourth Proportional to 502,442.32, 692,677.56 and 400,812.72

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Solution

The fourth proportional to 502,442.32, 692,677.56 and 400,812.72 is: 552,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,442.32 : 692,677.56 = 400,812.72 : x
  2. Step 2: Convert to fraction form
    502,442.32/692,677.56 = 400,812.72/x
  3. Step 3: Cross multiply
    502,442.32x = 692,677.56 × 400,812.72
  4. Step 4: Simplify right side
    502,442.32x = 277,633,976,906.56
  5. Step 5: Solve for x
    x = 277,633,976,906.56/502,442.32
  6. Step 6: Final answer
    x = 552,568.85

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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.