Home / 1,267,989.76-1,750,005.18-784,710.64

Finding the Fourth Proportional to 1,267,989.76, 1,750,005.18 and 784,710.64

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Solution

The fourth proportional to 1,267,989.76, 1,750,005.18 and 784,710.64 is: 1,083,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,989.76 : 1,750,005.18 = 784,710.64 : x
  2. Step 2: Convert to fraction form
    1,267,989.76/1,750,005.18 = 784,710.64/x
  3. Step 3: Cross multiply
    1,267,989.76x = 1,750,005.18 × 784,710.64
  4. Step 4: Simplify right side
    1,267,989.76x = 1,373,247,684,801.12
  5. Step 5: Solve for x
    x = 1,373,247,684,801.12/1,267,989.76
  6. Step 6: Final answer
    x = 1,083,011.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.