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Finding the Fourth Proportional to 580,281.60, 870,422.40 and 180,919.20

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Solution

The fourth proportional to 580,281.60, 870,422.40 and 180,919.20 is: 271,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,281.60 : 870,422.40 = 180,919.20 : x
  2. Step 2: Convert to fraction form
    580,281.60/870,422.40 = 180,919.20/x
  3. Step 3: Cross multiply
    580,281.60x = 870,422.40 × 180,919.20
  4. Step 4: Simplify right side
    580,281.60x = 157,476,124,270.08
  5. Step 5: Solve for x
    x = 157,476,124,270.08/580,281.60
  6. Step 6: Final answer
    x = 271,378.80

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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.