Home / 840,772.59-1,261,656.90-787,576.11

Finding the Fourth Proportional to 840,772.59, 1,261,656.90 and 787,576.11

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Solution

The fourth proportional to 840,772.59, 1,261,656.90 and 787,576.11 is: 1,181,830.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,772.59 : 1,261,656.90 = 787,576.11 : x
  2. Step 2: Convert to fraction form
    840,772.59/1,261,656.90 = 787,576.11/x
  3. Step 3: Cross multiply
    840,772.59x = 1,261,656.90 × 787,576.11
  4. Step 4: Simplify right side
    840,772.59x = 993,650,833,456.66
  5. Step 5: Solve for x
    x = 993,650,833,456.66/840,772.59
  6. Step 6: Final answer
    x = 1,181,830.67

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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.