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Finding the Fourth Proportional to 580,481.70, 870,880.35 and 243,345.30

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Solution

The fourth proportional to 580,481.70, 870,880.35 and 243,345.30 is: 365,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,481.70 : 870,880.35 = 243,345.30 : x
  2. Step 2: Convert to fraction form
    580,481.70/870,880.35 = 243,345.30/x
  3. Step 3: Cross multiply
    580,481.70x = 870,880.35 × 243,345.30
  4. Step 4: Simplify right side
    580,481.70x = 211,924,640,034.86
  5. Step 5: Solve for x
    x = 211,924,640,034.86/580,481.70
  6. Step 6: Final answer
    x = 365,084.10

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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.