Home / 762,065.89-1,052,126.22-490,604.11

Finding the Fourth Proportional to 762,065.89, 1,052,126.22 and 490,604.11

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Solution

The fourth proportional to 762,065.89, 1,052,126.22 and 490,604.11 is: 677,339.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,065.89 : 1,052,126.22 = 490,604.11 : x
  2. Step 2: Convert to fraction form
    762,065.89/1,052,126.22 = 490,604.11/x
  3. Step 3: Cross multiply
    762,065.89x = 1,052,126.22 × 490,604.11
  4. Step 4: Simplify right side
    762,065.89x = 516,177,447,770.76
  5. Step 5: Solve for x
    x = 516,177,447,770.76/762,065.89
  6. Step 6: Final answer
    x = 677,339.66

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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.