Home / 743,119.10-1,025,567.60-420,886.52

Finding the Fourth Proportional to 743,119.10, 1,025,567.60 and 420,886.52

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Solution

The fourth proportional to 743,119.10, 1,025,567.60 and 420,886.52 is: 580,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,119.10 : 1,025,567.60 = 420,886.52 : x
  2. Step 2: Convert to fraction form
    743,119.10/1,025,567.60 = 420,886.52/x
  3. Step 3: Cross multiply
    743,119.10x = 1,025,567.60 × 420,886.52
  4. Step 4: Simplify right side
    743,119.10x = 431,647,578,188.75
  5. Step 5: Solve for x
    x = 431,647,578,188.75/743,119.10
  6. Step 6: Final answer
    x = 580,859.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.