Home / 748,173.78-1,121,199.62-578,906.15

Finding the Fourth Proportional to 748,173.78, 1,121,199.62 and 578,906.15

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Solution

The fourth proportional to 748,173.78, 1,121,199.62 and 578,906.15 is: 867,538.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,173.78 : 1,121,199.62 = 578,906.15 : x
  2. Step 2: Convert to fraction form
    748,173.78/1,121,199.62 = 578,906.15/x
  3. Step 3: Cross multiply
    748,173.78x = 1,121,199.62 × 578,906.15
  4. Step 4: Simplify right side
    748,173.78x = 649,069,346,895.13
  5. Step 5: Solve for x
    x = 649,069,346,895.13/748,173.78
  6. Step 6: Final answer
    x = 867,538.22

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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.