Home / 1,280,677.62-1,767,435.65-729,416.73

Finding the Fourth Proportional to 1,280,677.62, 1,767,435.65 and 729,416.73

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Solution

The fourth proportional to 1,280,677.62, 1,767,435.65 and 729,416.73 is: 1,006,652.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,677.62 : 1,767,435.65 = 729,416.73 : x
  2. Step 2: Convert to fraction form
    1,280,677.62/1,767,435.65 = 729,416.73/x
  3. Step 3: Cross multiply
    1,280,677.62x = 1,767,435.65 × 729,416.73
  4. Step 4: Simplify right side
    1,280,677.62x = 1,289,197,128,661.34
  5. Step 5: Solve for x
    x = 1,289,197,128,661.34/1,280,677.62
  6. Step 6: Final answer
    x = 1,006,652.34

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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.