Home / 831,918.40-1,247,877.60-270,952.90

Finding the Fourth Proportional to 831,918.40, 1,247,877.60 and 270,952.90

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Solution

The fourth proportional to 831,918.40, 1,247,877.60 and 270,952.90 is: 406,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,918.40 : 1,247,877.60 = 270,952.90 : x
  2. Step 2: Convert to fraction form
    831,918.40/1,247,877.60 = 270,952.90/x
  3. Step 3: Cross multiply
    831,918.40x = 1,247,877.60 × 270,952.90
  4. Step 4: Simplify right side
    831,918.40x = 338,116,054,565.04
  5. Step 5: Solve for x
    x = 338,116,054,565.04/831,918.40
  6. Step 6: Final answer
    x = 406,429.35

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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.