Home / 470,789.60-705,961.80-171,061.28

Finding the Fourth Proportional to 470,789.60, 705,961.80 and 171,061.28

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Solution

The fourth proportional to 470,789.60, 705,961.80 and 171,061.28 is: 256,511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,789.60 : 705,961.80 = 171,061.28 : x
  2. Step 2: Convert to fraction form
    470,789.60/705,961.80 = 171,061.28/x
  3. Step 3: Cross multiply
    470,789.60x = 705,961.80 × 171,061.28
  4. Step 4: Simplify right side
    470,789.60x = 120,762,729,139.10
  5. Step 5: Solve for x
    x = 120,762,729,139.10/470,789.60
  6. Step 6: Final answer
    x = 256,511.04

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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.