Home / 407,526.40-611,316.60-108,002.80

Finding the Fourth Proportional to 407,526.40, 611,316.60 and 108,002.80

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Solution

The fourth proportional to 407,526.40, 611,316.60 and 108,002.80 is: 162,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,526.40 : 611,316.60 = 108,002.80 : x
  2. Step 2: Convert to fraction form
    407,526.40/611,316.60 = 108,002.80/x
  3. Step 3: Cross multiply
    407,526.40x = 611,316.60 × 108,002.80
  4. Step 4: Simplify right side
    407,526.40x = 66,023,904,486.48
  5. Step 5: Solve for x
    x = 66,023,904,486.48/407,526.40
  6. Step 6: Final answer
    x = 162,011.36

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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.