Home / 783,120.60-1,174,680.90-659,117.70

Finding the Fourth Proportional to 783,120.60, 1,174,680.90 and 659,117.70

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Solution

The fourth proportional to 783,120.60, 1,174,680.90 and 659,117.70 is: 988,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,120.60 : 1,174,680.90 = 659,117.70 : x
  2. Step 2: Convert to fraction form
    783,120.60/1,174,680.90 = 659,117.70/x
  3. Step 3: Cross multiply
    783,120.60x = 1,174,680.90 × 659,117.70
  4. Step 4: Simplify right side
    783,120.60x = 774,252,973,041.93
  5. Step 5: Solve for x
    x = 774,252,973,041.93/783,120.60
  6. Step 6: Final answer
    x = 988,676.55

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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.