Home / 743,051.30-1,025,410.68-420,761.30

Finding the Fourth Proportional to 743,051.30, 1,025,410.68 and 420,761.30

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Solution

The fourth proportional to 743,051.30, 1,025,410.68 and 420,761.30 is: 580,650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,051.30 : 1,025,410.68 = 420,761.30 : x
  2. Step 2: Convert to fraction form
    743,051.30/1,025,410.68 = 420,761.30/x
  3. Step 3: Cross multiply
    743,051.30x = 1,025,410.68 × 420,761.30
  4. Step 4: Simplify right side
    743,051.30x = 431,453,130,750.68
  5. Step 5: Solve for x
    x = 431,453,130,750.68/743,051.30
  6. Step 6: Final answer
    x = 580,650.53

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Double scale
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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.