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Finding the Fourth Proportional to 560,581.74, 840,372.48 and 205,512.84

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Solution

The fourth proportional to 560,581.74, 840,372.48 and 205,512.84 is: 308,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,581.74 : 840,372.48 = 205,512.84 : x
  2. Step 2: Convert to fraction form
    560,581.74/840,372.48 = 205,512.84/x
  3. Step 3: Cross multiply
    560,581.74x = 840,372.48 × 205,512.84
  4. Step 4: Simplify right side
    560,581.74x = 172,707,335,022.64
  5. Step 5: Solve for x
    x = 172,707,335,022.64/560,581.74
  6. Step 6: Final answer
    x = 308,085.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.