Home / 486,966.67-672,080.76-280,230.81

Finding the Fourth Proportional to 486,966.67, 672,080.76 and 280,230.81

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Solution

The fourth proportional to 486,966.67, 672,080.76 and 280,230.81 is: 386,756.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,966.67 : 672,080.76 = 280,230.81 : x
  2. Step 2: Convert to fraction form
    486,966.67/672,080.76 = 280,230.81/x
  3. Step 3: Cross multiply
    486,966.67x = 672,080.76 × 280,230.81
  4. Step 4: Simplify right side
    486,966.67x = 188,337,730,998.66
  5. Step 5: Solve for x
    x = 188,337,730,998.66/486,966.67
  6. Step 6: Final answer
    x = 386,756.93

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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.