Home / 981,605.20-1,472,116.20-382,221.40

Finding the Fourth Proportional to 981,605.20, 1,472,116.20 and 382,221.40

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Solution

The fourth proportional to 981,605.20, 1,472,116.20 and 382,221.40 is: 573,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,605.20 : 1,472,116.20 = 382,221.40 : x
  2. Step 2: Convert to fraction form
    981,605.20/1,472,116.20 = 382,221.40/x
  3. Step 3: Cross multiply
    981,605.20x = 1,472,116.20 × 382,221.40
  4. Step 4: Simplify right side
    981,605.20x = 562,674,314,926.68
  5. Step 5: Solve for x
    x = 562,674,314,926.68/981,605.20
  6. Step 6: Final answer
    x = 573,218.56

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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.