Home / 1,439,825.40-2,160,205.02-428,956.04

Finding the Fourth Proportional to 1,439,825.40, 2,160,205.02 and 428,956.04

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Solution

The fourth proportional to 1,439,825.40, 2,160,205.02 and 428,956.04 is: 643,573.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,825.40 : 2,160,205.02 = 428,956.04 : x
  2. Step 2: Convert to fraction form
    1,439,825.40/2,160,205.02 = 428,956.04/x
  3. Step 3: Cross multiply
    1,439,825.40x = 2,160,205.02 × 428,956.04
  4. Step 4: Simplify right side
    1,439,825.40x = 926,632,980,166.30
  5. Step 5: Solve for x
    x = 926,632,980,166.30/1,439,825.40
  6. Step 6: Final answer
    x = 643,573.16

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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.