Home / 762,066.39-1,052,126.91-490,604.61

Finding the Fourth Proportional to 762,066.39, 1,052,126.91 and 490,604.61

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Solution

The fourth proportional to 762,066.39, 1,052,126.91 and 490,604.61 is: 677,340.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,066.39 : 1,052,126.91 = 490,604.61 : x
  2. Step 2: Convert to fraction form
    762,066.39/1,052,126.91 = 490,604.61/x
  3. Step 3: Cross multiply
    762,066.39x = 1,052,126.91 × 490,604.61
  4. Step 4: Simplify right side
    762,066.39x = 516,178,312,351.06
  5. Step 5: Solve for x
    x = 516,178,312,351.06/762,066.39
  6. Step 6: Final answer
    x = 677,340.35

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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.