Home / 804,720.10-1,207,167.60-299,221.78

Finding the Fourth Proportional to 804,720.10, 1,207,167.60 and 299,221.78

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Solution

The fourth proportional to 804,720.10, 1,207,167.60 and 299,221.78 is: 448,865.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,720.10 : 1,207,167.60 = 299,221.78 : x
  2. Step 2: Convert to fraction form
    804,720.10/1,207,167.60 = 299,221.78/x
  3. Step 3: Cross multiply
    804,720.10x = 1,207,167.60 × 299,221.78
  4. Step 4: Simplify right side
    804,720.10x = 361,210,838,030.33
  5. Step 5: Solve for x
    x = 361,210,838,030.33/804,720.10
  6. Step 6: Final answer
    x = 448,865.19

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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.