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Finding the Fourth Proportional to 556,439.70, 834,659.55 and 201,708.30

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Solution

The fourth proportional to 556,439.70, 834,659.55 and 201,708.30 is: 302,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,439.70 : 834,659.55 = 201,708.30 : x
  2. Step 2: Convert to fraction form
    556,439.70/834,659.55 = 201,708.30/x
  3. Step 3: Cross multiply
    556,439.70x = 834,659.55 × 201,708.30
  4. Step 4: Simplify right side
    556,439.70x = 168,357,758,909.27
  5. Step 5: Solve for x
    x = 168,357,758,909.27/556,439.70
  6. Step 6: Final answer
    x = 302,562.45

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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.