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Finding the Fourth Proportional to 2,897,788.80, 4,346,488.80 and 767,827.20

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Solution

The fourth proportional to 2,897,788.80, 4,346,488.80 and 767,827.20 is: 1,151,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897,788.80 : 4,346,488.80 = 767,827.20 : x
  2. Step 2: Convert to fraction form
    2,897,788.80/4,346,488.80 = 767,827.20/x
  3. Step 3: Cross multiply
    2,897,788.80x = 4,346,488.80 × 767,827.20
  4. Step 4: Simplify right side
    2,897,788.80x = 3,337,352,325,135.36
  5. Step 5: Solve for x
    x = 3,337,352,325,135.36/2,897,788.80
  6. Step 6: Final answer
    x = 1,151,689.29

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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.