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Finding the Fourth Proportional to 666,770.60, 1,001,360.64 and 613,364.24

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Solution

The fourth proportional to 666,770.60, 1,001,360.64 and 613,364.24 is: 921,154.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,770.60 : 1,001,360.64 = 613,364.24 : x
  2. Step 2: Convert to fraction form
    666,770.60/1,001,360.64 = 613,364.24/x
  3. Step 3: Cross multiply
    666,770.60x = 1,001,360.64 × 613,364.24
  4. Step 4: Simplify right side
    666,770.60x = 614,198,807,919.51
  5. Step 5: Solve for x
    x = 614,198,807,919.51/666,770.60
  6. Step 6: Final answer
    x = 921,154.60

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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.