Home / 772,750.40-1,159,701.60-398,580.80

Finding the Fourth Proportional to 772,750.40, 1,159,701.60 and 398,580.80

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Solution

The fourth proportional to 772,750.40, 1,159,701.60 and 398,580.80 is: 598,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,750.40 : 1,159,701.60 = 398,580.80 : x
  2. Step 2: Convert to fraction form
    772,750.40/1,159,701.60 = 398,580.80/x
  3. Step 3: Cross multiply
    772,750.40x = 1,159,701.60 × 398,580.80
  4. Step 4: Simplify right side
    772,750.40x = 462,234,791,489.28
  5. Step 5: Solve for x
    x = 462,234,791,489.28/772,750.40
  6. Step 6: Final answer
    x = 598,168.30

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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.