Home / 2,640,256.64-3,960,350.40-645,729.92

Finding the Fourth Proportional to 2,640,256.64, 3,960,350.40 and 645,729.92

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Solution

The fourth proportional to 2,640,256.64, 3,960,350.40 and 645,729.92 is: 968,586.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,256.64 : 3,960,350.40 = 645,729.92 : x
  2. Step 2: Convert to fraction form
    2,640,256.64/3,960,350.40 = 645,729.92/x
  3. Step 3: Cross multiply
    2,640,256.64x = 3,960,350.40 × 645,729.92
  4. Step 4: Simplify right side
    2,640,256.64x = 2,557,316,746,963.97
  5. Step 5: Solve for x
    x = 2,557,316,746,963.97/2,640,256.64
  6. Step 6: Final answer
    x = 968,586.43

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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.