Home / 743,222.80-1,025,811.12-488,597.68

Finding the Fourth Proportional to 743,222.80, 1,025,811.12 and 488,597.68

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Solution

The fourth proportional to 743,222.80, 1,025,811.12 and 488,597.68 is: 674,372.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,222.80 : 1,025,811.12 = 488,597.68 : x
  2. Step 2: Convert to fraction form
    743,222.80/1,025,811.12 = 488,597.68/x
  3. Step 3: Cross multiply
    743,222.80x = 1,025,811.12 × 488,597.68
  4. Step 4: Simplify right side
    743,222.80x = 501,208,933,350.20
  5. Step 5: Solve for x
    x = 501,208,933,350.20/743,222.80
  6. Step 6: Final answer
    x = 674,372.39

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Double scale
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Similar ratio
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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.