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Finding the Fourth Proportional to 587,278.92, 810,431.31 and 342,248.07

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Solution

The fourth proportional to 587,278.92, 810,431.31 and 342,248.07 is: 472,294.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,278.92 : 810,431.31 = 342,248.07 : x
  2. Step 2: Convert to fraction form
    587,278.92/810,431.31 = 342,248.07/x
  3. Step 3: Cross multiply
    587,278.92x = 810,431.31 × 342,248.07
  4. Step 4: Simplify right side
    587,278.92x = 277,368,551,715.07
  5. Step 5: Solve for x
    x = 277,368,551,715.07/587,278.92
  6. Step 6: Final answer
    x = 472,294.41

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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.