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Finding the Fourth Proportional to 666,452.12, 919,701.12 and 360,527.74

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Solution

The fourth proportional to 666,452.12, 919,701.12 and 360,527.74 is: 497,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,452.12 : 919,701.12 = 360,527.74 : x
  2. Step 2: Convert to fraction form
    666,452.12/919,701.12 = 360,527.74/x
  3. Step 3: Cross multiply
    666,452.12x = 919,701.12 × 360,527.74
  4. Step 4: Simplify right side
    666,452.12x = 331,577,766,269.07
  5. Step 5: Solve for x
    x = 331,577,766,269.07/666,452.12
  6. Step 6: Final answer
    x = 497,526.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.