Home / 1,281,009.20-1,767,929.76-737,168.72

Finding the Fourth Proportional to 1,281,009.20, 1,767,929.76 and 737,168.72

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Solution

The fourth proportional to 1,281,009.20, 1,767,929.76 and 737,168.72 is: 1,017,371.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,009.20 : 1,767,929.76 = 737,168.72 : x
  2. Step 2: Convert to fraction form
    1,281,009.20/1,767,929.76 = 737,168.72/x
  3. Step 3: Cross multiply
    1,281,009.20x = 1,767,929.76 × 737,168.72
  4. Step 4: Simplify right side
    1,281,009.20x = 1,303,262,518,229.11
  5. Step 5: Solve for x
    x = 1,303,262,518,229.11/1,281,009.20
  6. Step 6: Final answer
    x = 1,017,371.71

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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.