Home / 1,280,135.87-1,766,641.17-736,271.81

Finding the Fourth Proportional to 1,280,135.87, 1,766,641.17 and 736,271.81

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Solution

The fourth proportional to 1,280,135.87, 1,766,641.17 and 736,271.81 is: 1,016,085.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,135.87 : 1,766,641.17 = 736,271.81 : x
  2. Step 2: Convert to fraction form
    1,280,135.87/1,766,641.17 = 736,271.81/x
  3. Step 3: Cross multiply
    1,280,135.87x = 1,766,641.17 × 736,271.81
  4. Step 4: Simplify right side
    1,280,135.87x = 1,300,728,091,856.42
  5. Step 5: Solve for x
    x = 1,300,728,091,856.42/1,280,135.87
  6. Step 6: Final answer
    x = 1,016,085.97

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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.