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Finding the Fourth Proportional to 424,334.45, 587,123.55 and 369,999.85

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Solution

The fourth proportional to 424,334.45, 587,123.55 and 369,999.85 is: 511,944.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,334.45 : 587,123.55 = 369,999.85 : x
  2. Step 2: Convert to fraction form
    424,334.45/587,123.55 = 369,999.85/x
  3. Step 3: Cross multiply
    424,334.45x = 587,123.55 × 369,999.85
  4. Step 4: Simplify right side
    424,334.45x = 217,235,625,431.47
  5. Step 5: Solve for x
    x = 217,235,625,431.47/424,334.45
  6. Step 6: Final answer
    x = 511,944.35

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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.