Home / 763,427.40-1,145,141.10-194,807.40

Finding the Fourth Proportional to 763,427.40, 1,145,141.10 and 194,807.40

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Solution

The fourth proportional to 763,427.40, 1,145,141.10 and 194,807.40 is: 292,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,427.40 : 1,145,141.10 = 194,807.40 : x
  2. Step 2: Convert to fraction form
    763,427.40/1,145,141.10 = 194,807.40/x
  3. Step 3: Cross multiply
    763,427.40x = 1,145,141.10 × 194,807.40
  4. Step 4: Simplify right side
    763,427.40x = 223,081,960,324.14
  5. Step 5: Solve for x
    x = 223,081,960,324.14/763,427.40
  6. Step 6: Final answer
    x = 292,211.10

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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.