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Finding the Fourth Proportional to 2,799,728.80, 4,196,482.80 and 1,538,461.60

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Solution

The fourth proportional to 2,799,728.80, 4,196,482.80 and 1,538,461.60 is: 2,305,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799,728.80 : 4,196,482.80 = 1,538,461.60 : x
  2. Step 2: Convert to fraction form
    2,799,728.80/4,196,482.80 = 1,538,461.60/x
  3. Step 3: Cross multiply
    2,799,728.80x = 4,196,482.80 × 1,538,461.60
  4. Step 4: Simplify right side
    2,799,728.80x = 6,456,127,642,860.48
  5. Step 5: Solve for x
    x = 6,456,127,642,860.48/2,799,728.80
  6. Step 6: Final answer
    x = 2,305,983.22

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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.