Home / 1,047,368.12-1,571,049.20-278,865.76

Finding the Fourth Proportional to 1,047,368.12, 1,571,049.20 and 278,865.76

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Solution

The fourth proportional to 1,047,368.12, 1,571,049.20 and 278,865.76 is: 418,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,368.12 : 1,571,049.20 = 278,865.76 : x
  2. Step 2: Convert to fraction form
    1,047,368.12/1,571,049.20 = 278,865.76/x
  3. Step 3: Cross multiply
    1,047,368.12x = 1,571,049.20 × 278,865.76
  4. Step 4: Simplify right side
    1,047,368.12x = 438,111,825,825.61
  5. Step 5: Solve for x
    x = 438,111,825,825.61/1,047,368.12
  6. Step 6: Final answer
    x = 418,297.84

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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.