Home / 2,179,931.20-3,271,063.20-917,886.40

Finding the Fourth Proportional to 2,179,931.20, 3,271,063.20 and 917,886.40

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Solution

The fourth proportional to 2,179,931.20, 3,271,063.20 and 917,886.40 is: 1,377,320.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,931.20 : 3,271,063.20 = 917,886.40 : x
  2. Step 2: Convert to fraction form
    2,179,931.20/3,271,063.20 = 917,886.40/x
  3. Step 3: Cross multiply
    2,179,931.20x = 3,271,063.20 × 917,886.40
  4. Step 4: Simplify right side
    2,179,931.20x = 3,002,464,424,820.48
  5. Step 5: Solve for x
    x = 3,002,464,424,820.48/2,179,931.20
  6. Step 6: Final answer
    x = 1,377,320.73

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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.