Home / 747,650.58-1,121,475.77-412,820.21

Finding the Fourth Proportional to 747,650.58, 1,121,475.77 and 412,820.21

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Solution

The fourth proportional to 747,650.58, 1,121,475.77 and 412,820.21 is: 619,230.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,650.58 : 1,121,475.77 = 412,820.21 : x
  2. Step 2: Convert to fraction form
    747,650.58/1,121,475.77 = 412,820.21/x
  3. Step 3: Cross multiply
    747,650.58x = 1,121,475.77 × 412,820.21
  4. Step 4: Simplify right side
    747,650.58x = 462,967,861,109.67
  5. Step 5: Solve for x
    x = 462,967,861,109.67/747,650.58
  6. Step 6: Final answer
    x = 619,230.26

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Double scale
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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.