Home / 841,122.90-1,160,734.68-478,538.96

Finding the Fourth Proportional to 841,122.90, 1,160,734.68 and 478,538.96

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Solution

The fourth proportional to 841,122.90, 1,160,734.68 and 478,538.96 is: 660,375.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,122.90 : 1,160,734.68 = 478,538.96 : x
  2. Step 2: Convert to fraction form
    841,122.90/1,160,734.68 = 478,538.96/x
  3. Step 3: Cross multiply
    841,122.90x = 1,160,734.68 × 478,538.96
  4. Step 4: Simplify right side
    841,122.90x = 555,456,760,799.46
  5. Step 5: Solve for x
    x = 555,456,760,799.46/841,122.90
  6. Step 6: Final answer
    x = 660,375.27

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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.