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Finding the Fourth Proportional to 976,911.60, 1,465,626.60 and 345,759.60

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Solution

The fourth proportional to 976,911.60, 1,465,626.60 and 345,759.60 is: 518,731.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,911.60 : 1,465,626.60 = 345,759.60 : x
  2. Step 2: Convert to fraction form
    976,911.60/1,465,626.60 = 345,759.60/x
  3. Step 3: Cross multiply
    976,911.60x = 1,465,626.60 × 345,759.60
  4. Step 4: Simplify right side
    976,911.60x = 506,754,466,965.36
  5. Step 5: Solve for x
    x = 506,754,466,965.36/976,911.60
  6. Step 6: Final answer
    x = 518,731.14

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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.