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Finding the Fourth Proportional to 976,902.60, 1,465,613.10 and 345,750.60

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Solution

The fourth proportional to 976,902.60, 1,465,613.10 and 345,750.60 is: 518,717.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,902.60 : 1,465,613.10 = 345,750.60 : x
  2. Step 2: Convert to fraction form
    976,902.60/1,465,613.10 = 345,750.60/x
  3. Step 3: Cross multiply
    976,902.60x = 1,465,613.10 × 345,750.60
  4. Step 4: Simplify right side
    976,902.60x = 506,736,608,692.86
  5. Step 5: Solve for x
    x = 506,736,608,692.86/976,902.60
  6. Step 6: Final answer
    x = 518,717.64

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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.