Home / 787,137.20-1,183,330.20-671,663.60

Finding the Fourth Proportional to 787,137.20, 1,183,330.20 and 671,663.60

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Solution

The fourth proportional to 787,137.20, 1,183,330.20 and 671,663.60 is: 1,009,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,137.20 : 1,183,330.20 = 671,663.60 : x
  2. Step 2: Convert to fraction form
    787,137.20/1,183,330.20 = 671,663.60/x
  3. Step 3: Cross multiply
    787,137.20x = 1,183,330.20 × 671,663.60
  4. Step 4: Simplify right side
    787,137.20x = 794,799,822,120.72
  5. Step 5: Solve for x
    x = 794,799,822,120.72/787,137.20
  6. Step 6: Final answer
    x = 1,009,734.80

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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.