Home / 766,906.70-1,149,047.85-486,095.90

Finding the Fourth Proportional to 766,906.70, 1,149,047.85 and 486,095.90

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Solution

The fourth proportional to 766,906.70, 1,149,047.85 and 486,095.90 is: 728,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,906.70 : 1,149,047.85 = 486,095.90 : x
  2. Step 2: Convert to fraction form
    766,906.70/1,149,047.85 = 486,095.90/x
  3. Step 3: Cross multiply
    766,906.70x = 1,149,047.85 × 486,095.90
  4. Step 4: Simplify right side
    766,906.70x = 558,547,448,788.82
  5. Step 5: Solve for x
    x = 558,547,448,788.82/766,906.70
  6. Step 6: Final answer
    x = 728,312.13

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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.