Home / 869,646.20-1,305,117.30-448,705.40

Finding the Fourth Proportional to 869,646.20, 1,305,117.30 and 448,705.40

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Solution

The fourth proportional to 869,646.20, 1,305,117.30 and 448,705.40 is: 673,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,646.20 : 1,305,117.30 = 448,705.40 : x
  2. Step 2: Convert to fraction form
    869,646.20/1,305,117.30 = 448,705.40/x
  3. Step 3: Cross multiply
    869,646.20x = 1,305,117.30 × 448,705.40
  4. Step 4: Simplify right side
    869,646.20x = 585,613,180,143.42
  5. Step 5: Solve for x
    x = 585,613,180,143.42/869,646.20
  6. Step 6: Final answer
    x = 673,392.44

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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.