Home / 4,921,280.40-7,375,008.60-3,912,128.40

Finding the Fourth Proportional to 4,921,280.40, 7,375,008.60 and 3,912,128.40

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Solution

The fourth proportional to 4,921,280.40, 7,375,008.60 and 3,912,128.40 is: 5,862,697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,921,280.40 : 7,375,008.60 = 3,912,128.40 : x
  2. Step 2: Convert to fraction form
    4,921,280.40/7,375,008.60 = 3,912,128.40/x
  3. Step 3: Cross multiply
    4,921,280.40x = 7,375,008.60 × 3,912,128.40
  4. Step 4: Simplify right side
    4,921,280.40x = 28,851,980,594,304.24
  5. Step 5: Solve for x
    x = 28,851,980,594,304.24/4,921,280.40
  6. Step 6: Final answer
    x = 5,862,697.97

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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.