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Finding the Fourth Proportional to 580,477.20, 870,873.60 and 243,340.80

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Solution

The fourth proportional to 580,477.20, 870,873.60 and 243,340.80 is: 365,077.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,477.20 : 870,873.60 = 243,340.80 : x
  2. Step 2: Convert to fraction form
    580,477.20/870,873.60 = 243,340.80/x
  3. Step 3: Cross multiply
    580,477.20x = 870,873.60 × 243,340.80
  4. Step 4: Simplify right side
    580,477.20x = 211,919,078,522.88
  5. Step 5: Solve for x
    x = 211,919,078,522.88/580,477.20
  6. Step 6: Final answer
    x = 365,077.35

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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.