Home / 389,949.42-584,924.13-140,631.42

Finding the Fourth Proportional to 389,949.42, 584,924.13 and 140,631.42

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Solution

The fourth proportional to 389,949.42, 584,924.13 and 140,631.42 is: 210,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,949.42 : 584,924.13 = 140,631.42 : x
  2. Step 2: Convert to fraction form
    389,949.42/584,924.13 = 140,631.42/x
  3. Step 3: Cross multiply
    389,949.42x = 584,924.13 × 140,631.42
  4. Step 4: Simplify right side
    389,949.42x = 82,258,710,994.16
  5. Step 5: Solve for x
    x = 82,258,710,994.16/389,949.42
  6. Step 6: Final answer
    x = 210,947.13

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Similar ratio
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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.