Home / 775,479.28-1,163,219.33-243,041.78

Finding the Fourth Proportional to 775,479.28, 1,163,219.33 and 243,041.78

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Solution

The fourth proportional to 775,479.28, 1,163,219.33 and 243,041.78 is: 364,562.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,479.28 : 1,163,219.33 = 243,041.78 : x
  2. Step 2: Convert to fraction form
    775,479.28/1,163,219.33 = 243,041.78/x
  3. Step 3: Cross multiply
    775,479.28x = 1,163,219.33 × 243,041.78
  4. Step 4: Simplify right side
    775,479.28x = 282,710,896,493.61
  5. Step 5: Solve for x
    x = 282,710,896,493.61/775,479.28
  6. Step 6: Final answer
    x = 364,562.80

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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.