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Finding the Fourth Proportional to 868,488.58, 1,300,808.07 and 667,328.26

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Solution

The fourth proportional to 868,488.58, 1,300,808.07 and 667,328.26 is: 999,513.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,488.58 : 1,300,808.07 = 667,328.26 : x
  2. Step 2: Convert to fraction form
    868,488.58/1,300,808.07 = 667,328.26/x
  3. Step 3: Cross multiply
    868,488.58x = 1,300,808.07 × 667,328.26
  4. Step 4: Simplify right side
    868,488.58x = 868,065,985,947.06
  5. Step 5: Solve for x
    x = 868,065,985,947.06/868,488.58
  6. Step 6: Final answer
    x = 999,513.41

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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.