Home / 693,335.80-1,040,003.70-338,577.40

Finding the Fourth Proportional to 693,335.80, 1,040,003.70 and 338,577.40

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Solution

The fourth proportional to 693,335.80, 1,040,003.70 and 338,577.40 is: 507,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,335.80 : 1,040,003.70 = 338,577.40 : x
  2. Step 2: Convert to fraction form
    693,335.80/1,040,003.70 = 338,577.40/x
  3. Step 3: Cross multiply
    693,335.80x = 1,040,003.70 × 338,577.40
  4. Step 4: Simplify right side
    693,335.80x = 352,121,748,736.38
  5. Step 5: Solve for x
    x = 352,121,748,736.38/693,335.80
  6. Step 6: Final answer
    x = 507,866.10

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Half scale
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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.