Home / 2,280,543.40-3,420,008.70-784,287.40

Finding the Fourth Proportional to 2,280,543.40, 3,420,008.70 and 784,287.40

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Solution

The fourth proportional to 2,280,543.40, 3,420,008.70 and 784,287.40 is: 1,176,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280,543.40 : 3,420,008.70 = 784,287.40 : x
  2. Step 2: Convert to fraction form
    2,280,543.40/3,420,008.70 = 784,287.40/x
  3. Step 3: Cross multiply
    2,280,543.40x = 3,420,008.70 × 784,287.40
  4. Step 4: Simplify right side
    2,280,543.40x = 2,682,269,731,300.38
  5. Step 5: Solve for x
    x = 2,682,269,731,300.38/2,280,543.40
  6. Step 6: Final answer
    x = 1,176,153.78

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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.