Home / 2,790,865.47-4,180,693.05-1,272,459.72

Finding the Fourth Proportional to 2,790,865.47, 4,180,693.05 and 1,272,459.72

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Solution

The fourth proportional to 2,790,865.47, 4,180,693.05 and 1,272,459.72 is: 1,906,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790,865.47 : 4,180,693.05 = 1,272,459.72 : x
  2. Step 2: Convert to fraction form
    2,790,865.47/4,180,693.05 = 1,272,459.72/x
  3. Step 3: Cross multiply
    2,790,865.47x = 4,180,693.05 × 1,272,459.72
  4. Step 4: Simplify right side
    2,790,865.47x = 5,319,763,480,543.18
  5. Step 5: Solve for x
    x = 5,319,763,480,543.18/2,790,865.47
  6. Step 6: Final answer
    x = 1,906,133.97

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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.