Home / 731,155.05-1,008,975.09-404,459.55

Finding the Fourth Proportional to 731,155.05, 1,008,975.09 and 404,459.55

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Solution

The fourth proportional to 731,155.05, 1,008,975.09 and 404,459.55 is: 558,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,155.05 : 1,008,975.09 = 404,459.55 : x
  2. Step 2: Convert to fraction form
    731,155.05/1,008,975.09 = 404,459.55/x
  3. Step 3: Cross multiply
    731,155.05x = 1,008,975.09 × 404,459.55
  4. Step 4: Simplify right side
    731,155.05x = 408,089,606,841.45
  5. Step 5: Solve for x
    x = 408,089,606,841.45/731,155.05
  6. Step 6: Final answer
    x = 558,143.73

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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.