Home / 2,989,390-4,125,445.68-1,631,350.48

Finding the Fourth Proportional to 2,989,390, 4,125,445.68 and 1,631,350.48

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Solution

The fourth proportional to 2,989,390, 4,125,445.68 and 1,631,350.48 is: 2,251,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,989,390 : 4,125,445.68 = 1,631,350.48 : x
  2. Step 2: Convert to fraction form
    2,989,390/4,125,445.68 = 1,631,350.48/x
  3. Step 3: Cross multiply
    2,989,390x = 4,125,445.68 × 1,631,350.48
  4. Step 4: Simplify right side
    2,989,390x = 6,730,047,790,281.93
  5. Step 5: Solve for x
    x = 6,730,047,790,281.93/2,989,390
  6. Step 6: Final answer
    x = 2,251,311.40

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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.