Home / 683,278.80-1,024,918.20-309,301.80

Finding the Fourth Proportional to 683,278.80, 1,024,918.20 and 309,301.80

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Solution

The fourth proportional to 683,278.80, 1,024,918.20 and 309,301.80 is: 463,952.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,278.80 : 1,024,918.20 = 309,301.80 : x
  2. Step 2: Convert to fraction form
    683,278.80/1,024,918.20 = 309,301.80/x
  3. Step 3: Cross multiply
    683,278.80x = 1,024,918.20 × 309,301.80
  4. Step 4: Simplify right side
    683,278.80x = 317,009,044,112.76
  5. Step 5: Solve for x
    x = 317,009,044,112.76/683,278.80
  6. Step 6: Final answer
    x = 463,952.70

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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.