Home / 707,789.18-977,398.17-449,751.17

Finding the Fourth Proportional to 707,789.18, 977,398.17 and 449,751.17

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Solution

The fourth proportional to 707,789.18, 977,398.17 and 449,751.17 is: 621,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,789.18 : 977,398.17 = 449,751.17 : x
  2. Step 2: Convert to fraction form
    707,789.18/977,398.17 = 449,751.17/x
  3. Step 3: Cross multiply
    707,789.18x = 977,398.17 × 449,751.17
  4. Step 4: Simplify right side
    707,789.18x = 439,585,970,513.36
  5. Step 5: Solve for x
    x = 439,585,970,513.36/707,789.18
  6. Step 6: Final answer
    x = 621,069.07

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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.