Home / 683,138.90-1,024,708.35-433,999.70

Finding the Fourth Proportional to 683,138.90, 1,024,708.35 and 433,999.70

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Solution

The fourth proportional to 683,138.90, 1,024,708.35 and 433,999.70 is: 650,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,138.90 : 1,024,708.35 = 433,999.70 : x
  2. Step 2: Convert to fraction form
    683,138.90/1,024,708.35 = 433,999.70/x
  3. Step 3: Cross multiply
    683,138.90x = 1,024,708.35 × 433,999.70
  4. Step 4: Simplify right side
    683,138.90x = 444,723,116,487.50
  5. Step 5: Solve for x
    x = 444,723,116,487.50/683,138.90
  6. Step 6: Final answer
    x = 650,999.55

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.