Home / 728,871.03-1,093,622.30-391,518.08

Finding the Fourth Proportional to 728,871.03, 1,093,622.30 and 391,518.08

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Solution

The fourth proportional to 728,871.03, 1,093,622.30 and 391,518.08 is: 587,446.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,871.03 : 1,093,622.30 = 391,518.08 : x
  2. Step 2: Convert to fraction form
    728,871.03/1,093,622.30 = 391,518.08/x
  3. Step 3: Cross multiply
    728,871.03x = 1,093,622.30 × 391,518.08
  4. Step 4: Simplify right side
    728,871.03x = 428,172,895,715.48
  5. Step 5: Solve for x
    x = 428,172,895,715.48/728,871.03
  6. Step 6: Final answer
    x = 587,446.72

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1.5x scale

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.