Home / 2,280,328.80-3,418,354.80-861,338.40

Finding the Fourth Proportional to 2,280,328.80, 3,418,354.80 and 861,338.40

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Solution

The fourth proportional to 2,280,328.80, 3,418,354.80 and 861,338.40 is: 1,291,199.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280,328.80 : 3,418,354.80 = 861,338.40 : x
  2. Step 2: Convert to fraction form
    2,280,328.80/3,418,354.80 = 861,338.40/x
  3. Step 3: Cross multiply
    2,280,328.80x = 3,418,354.80 × 861,338.40
  4. Step 4: Simplify right side
    2,280,328.80x = 2,944,360,254,064.32
  5. Step 5: Solve for x
    x = 2,944,360,254,064.32/2,280,328.80
  6. Step 6: Final answer
    x = 1,291,199.87

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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.