Home / 511,342.74-705,657.95-281,909.18

Finding the Fourth Proportional to 511,342.74, 705,657.95 and 281,909.18

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Solution

The fourth proportional to 511,342.74, 705,657.95 and 281,909.18 is: 389,037.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,342.74 : 705,657.95 = 281,909.18 : x
  2. Step 2: Convert to fraction form
    511,342.74/705,657.95 = 281,909.18/x
  3. Step 3: Cross multiply
    511,342.74x = 705,657.95 × 281,909.18
  4. Step 4: Simplify right side
    511,342.74x = 198,931,454,044.98
  5. Step 5: Solve for x
    x = 198,931,454,044.98/511,342.74
  6. Step 6: Final answer
    x = 389,037.41

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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.