Home / 709,862.46-979,631.73-403,982.79

Finding the Fourth Proportional to 709,862.46, 979,631.73 and 403,982.79

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Solution

The fourth proportional to 709,862.46, 979,631.73 and 403,982.79 is: 557,508.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,862.46 : 979,631.73 = 403,982.79 : x
  2. Step 2: Convert to fraction form
    709,862.46/979,631.73 = 403,982.79/x
  3. Step 3: Cross multiply
    709,862.46x = 979,631.73 × 403,982.79
  4. Step 4: Simplify right side
    709,862.46x = 395,754,359,457.93
  5. Step 5: Solve for x
    x = 395,754,359,457.93/709,862.46
  6. Step 6: Final answer
    x = 557,508.51

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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.