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Finding the Fourth Proportional to 1,866,638.02, 2,799,957.03 and 1,067,358.91

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Solution

The fourth proportional to 1,866,638.02, 2,799,957.03 and 1,067,358.91 is: 1,601,038.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,866,638.02 : 2,799,957.03 = 1,067,358.91 : x
  2. Step 2: Convert to fraction form
    1,866,638.02/2,799,957.03 = 1,067,358.91/x
  3. Step 3: Cross multiply
    1,866,638.02x = 2,799,957.03 × 1,067,358.91
  4. Step 4: Simplify right side
    1,866,638.02x = 2,988,559,083,587.64
  5. Step 5: Solve for x
    x = 2,988,559,083,587.64/1,866,638.02
  6. Step 6: Final answer
    x = 1,601,038.37

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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.