Home / 459,788.20-689,682.30-127,364.20

Finding the Fourth Proportional to 459,788.20, 689,682.30 and 127,364.20

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Solution

The fourth proportional to 459,788.20, 689,682.30 and 127,364.20 is: 191,046.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,788.20 : 689,682.30 = 127,364.20 : x
  2. Step 2: Convert to fraction form
    459,788.20/689,682.30 = 127,364.20/x
  3. Step 3: Cross multiply
    459,788.20x = 689,682.30 × 127,364.20
  4. Step 4: Simplify right side
    459,788.20x = 87,840,834,393.66
  5. Step 5: Solve for x
    x = 87,840,834,393.66/459,788.20
  6. Step 6: Final answer
    x = 191,046.30

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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.