Home / 668,515.28-1,003,079.14-289,551.92

Finding the Fourth Proportional to 668,515.28, 1,003,079.14 and 289,551.92

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Solution

The fourth proportional to 668,515.28, 1,003,079.14 and 289,551.92 is: 434,460.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,515.28 : 1,003,079.14 = 289,551.92 : x
  2. Step 2: Convert to fraction form
    668,515.28/1,003,079.14 = 289,551.92/x
  3. Step 3: Cross multiply
    668,515.28x = 1,003,079.14 × 289,551.92
  4. Step 4: Simplify right side
    668,515.28x = 290,443,490,898.95
  5. Step 5: Solve for x
    x = 290,443,490,898.95/668,515.28
  6. Step 6: Final answer
    x = 434,460.51

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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.