Home / 755,279.78-1,042,374.71-424,190

Finding the Fourth Proportional to 755,279.78, 1,042,374.71 and 424,190

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Solution

The fourth proportional to 755,279.78, 1,042,374.71 and 424,190 is: 585,431.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,279.78 : 1,042,374.71 = 424,190 : x
  2. Step 2: Convert to fraction form
    755,279.78/1,042,374.71 = 424,190/x
  3. Step 3: Cross multiply
    755,279.78x = 1,042,374.71 × 424,190
  4. Step 4: Simplify right side
    755,279.78x = 442,164,928,234.90
  5. Step 5: Solve for x
    x = 442,164,928,234.90/755,279.78
  6. Step 6: Final answer
    x = 585,431.97

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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.