Home / 731,409.60-1,097,114.40-666,091.20

Finding the Fourth Proportional to 731,409.60, 1,097,114.40 and 666,091.20

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Solution

The fourth proportional to 731,409.60, 1,097,114.40 and 666,091.20 is: 999,136.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,409.60 : 1,097,114.40 = 666,091.20 : x
  2. Step 2: Convert to fraction form
    731,409.60/1,097,114.40 = 666,091.20/x
  3. Step 3: Cross multiply
    731,409.60x = 1,097,114.40 × 666,091.20
  4. Step 4: Simplify right side
    731,409.60x = 730,778,247,233.28
  5. Step 5: Solve for x
    x = 730,778,247,233.28/731,409.60
  6. Step 6: Final answer
    x = 999,136.80

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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.