Home / 791,311.60-1,187,477.70-436,580.20

Finding the Fourth Proportional to 791,311.60, 1,187,477.70 and 436,580.20

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Solution

The fourth proportional to 791,311.60, 1,187,477.70 and 436,580.20 is: 655,151.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,311.60 : 1,187,477.70 = 436,580.20 : x
  2. Step 2: Convert to fraction form
    791,311.60/1,187,477.70 = 436,580.20/x
  3. Step 3: Cross multiply
    791,311.60x = 1,187,477.70 × 436,580.20
  4. Step 4: Simplify right side
    791,311.60x = 518,429,251,761.54
  5. Step 5: Solve for x
    x = 518,429,251,761.54/791,311.60
  6. Step 6: Final answer
    x = 655,151.84

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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.