Home / 2,117,128.80-2,921,587.20-1,150,237.20

Finding the Fourth Proportional to 2,117,128.80, 2,921,587.20 and 1,150,237.20

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Solution

The fourth proportional to 2,117,128.80, 2,921,587.20 and 1,150,237.20 is: 1,587,299.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,128.80 : 2,921,587.20 = 1,150,237.20 : x
  2. Step 2: Convert to fraction form
    2,117,128.80/2,921,587.20 = 1,150,237.20/x
  3. Step 3: Cross multiply
    2,117,128.80x = 2,921,587.20 × 1,150,237.20
  4. Step 4: Simplify right side
    2,117,128.80x = 3,360,518,280,483.84
  5. Step 5: Solve for x
    x = 3,360,518,280,483.84/2,117,128.80
  6. Step 6: Final answer
    x = 1,587,299.88

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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.