Home / 731,109.48-1,008,925.38-408,820.20

Finding the Fourth Proportional to 731,109.48, 1,008,925.38 and 408,820.20

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Solution

The fourth proportional to 731,109.48, 1,008,925.38 and 408,820.20 is: 564,168.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,109.48 : 1,008,925.38 = 408,820.20 : x
  2. Step 2: Convert to fraction form
    731,109.48/1,008,925.38 = 408,820.20/x
  3. Step 3: Cross multiply
    731,109.48x = 1,008,925.38 × 408,820.20
  4. Step 4: Simplify right side
    731,109.48x = 412,469,075,636.68
  5. Step 5: Solve for x
    x = 412,469,075,636.68/731,109.48
  6. Step 6: Final answer
    x = 564,168.69

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Double scale
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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.