Home / 917,396.40-1,376,094.60-728,439.60

Finding the Fourth Proportional to 917,396.40, 1,376,094.60 and 728,439.60

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Solution

The fourth proportional to 917,396.40, 1,376,094.60 and 728,439.60 is: 1,092,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,396.40 : 1,376,094.60 = 728,439.60 : x
  2. Step 2: Convert to fraction form
    917,396.40/1,376,094.60 = 728,439.60/x
  3. Step 3: Cross multiply
    917,396.40x = 1,376,094.60 × 728,439.60
  4. Step 4: Simplify right side
    917,396.40x = 1,002,401,799,986.16
  5. Step 5: Solve for x
    x = 1,002,401,799,986.16/917,396.40
  6. Step 6: Final answer
    x = 1,092,659.40

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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.