Home / 1,288,949.28-1,931,970.78-614,478.48

Finding the Fourth Proportional to 1,288,949.28, 1,931,970.78 and 614,478.48

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Solution

The fourth proportional to 1,288,949.28, 1,931,970.78 and 614,478.48 is: 921,024.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,949.28 : 1,931,970.78 = 614,478.48 : x
  2. Step 2: Convert to fraction form
    1,288,949.28/1,931,970.78 = 614,478.48/x
  3. Step 3: Cross multiply
    1,288,949.28x = 1,931,970.78 × 614,478.48
  4. Step 4: Simplify right side
    1,288,949.28x = 1,187,154,468,298.81
  5. Step 5: Solve for x
    x = 1,187,154,468,298.81/1,288,949.28
  6. Step 6: Final answer
    x = 921,024.97

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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.