Home / 1,820,925.41-2,512,876.69-1,005,128.88

Finding the Fourth Proportional to 1,820,925.41, 2,512,876.69 and 1,005,128.88

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Solution

The fourth proportional to 1,820,925.41, 2,512,876.69 and 1,005,128.88 is: 1,387,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,925.41 : 2,512,876.69 = 1,005,128.88 : x
  2. Step 2: Convert to fraction form
    1,820,925.41/2,512,876.69 = 1,005,128.88/x
  3. Step 3: Cross multiply
    1,820,925.41x = 2,512,876.69 × 1,005,128.88
  4. Step 4: Simplify right side
    1,820,925.41x = 2,525,764,924,367.09
  5. Step 5: Solve for x
    x = 2,525,764,924,367.09/1,820,925.41
  6. Step 6: Final answer
    x = 1,387,077.64

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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.