Home / 768,305.92-1,060,266.12-424,135.72

Finding the Fourth Proportional to 768,305.92, 1,060,266.12 and 424,135.72

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Solution

The fourth proportional to 768,305.92, 1,060,266.12 and 424,135.72 is: 585,309.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,305.92 : 1,060,266.12 = 424,135.72 : x
  2. Step 2: Convert to fraction form
    768,305.92/1,060,266.12 = 424,135.72/x
  3. Step 3: Cross multiply
    768,305.92x = 1,060,266.12 × 424,135.72
  4. Step 4: Simplify right side
    768,305.92x = 449,696,734,197.81
  5. Step 5: Solve for x
    x = 449,696,734,197.81/768,305.92
  6. Step 6: Final answer
    x = 585,309.47

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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.