Home / 910,241.40-1,365,362.10-279,073.20

Finding the Fourth Proportional to 910,241.40, 1,365,362.10 and 279,073.20

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Solution

The fourth proportional to 910,241.40, 1,365,362.10 and 279,073.20 is: 418,609.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,241.40 : 1,365,362.10 = 279,073.20 : x
  2. Step 2: Convert to fraction form
    910,241.40/1,365,362.10 = 279,073.20/x
  3. Step 3: Cross multiply
    910,241.40x = 1,365,362.10 × 279,073.20
  4. Step 4: Simplify right side
    910,241.40x = 381,035,970,405.72
  5. Step 5: Solve for x
    x = 381,035,970,405.72/910,241.40
  6. Step 6: Final answer
    x = 418,609.80

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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.