Home / 488,619.20-732,734.40-172,913.60

Finding the Fourth Proportional to 488,619.20, 732,734.40 and 172,913.60

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Solution

The fourth proportional to 488,619.20, 732,734.40 and 172,913.60 is: 259,301.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,619.20 : 732,734.40 = 172,913.60 : x
  2. Step 2: Convert to fraction form
    488,619.20/732,734.40 = 172,913.60/x
  3. Step 3: Cross multiply
    488,619.20x = 732,734.40 × 172,913.60
  4. Step 4: Simplify right side
    488,619.20x = 126,699,742,947.84
  5. Step 5: Solve for x
    x = 126,699,742,947.84/488,619.20
  6. Step 6: Final answer
    x = 259,301.61

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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.