Home / 938,449.80-1,407,674.70-307,427.40

Finding the Fourth Proportional to 938,449.80, 1,407,674.70 and 307,427.40

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Solution

The fourth proportional to 938,449.80, 1,407,674.70 and 307,427.40 is: 461,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,449.80 : 1,407,674.70 = 307,427.40 : x
  2. Step 2: Convert to fraction form
    938,449.80/1,407,674.70 = 307,427.40/x
  3. Step 3: Cross multiply
    938,449.80x = 1,407,674.70 × 307,427.40
  4. Step 4: Simplify right side
    938,449.80x = 432,757,773,066.78
  5. Step 5: Solve for x
    x = 432,757,773,066.78/938,449.80
  6. Step 6: Final answer
    x = 461,141.10

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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.