Home / 763,314.12-1,144,971.18-257,877.36

Finding the Fourth Proportional to 763,314.12, 1,144,971.18 and 257,877.36

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Solution

The fourth proportional to 763,314.12, 1,144,971.18 and 257,877.36 is: 386,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,314.12 : 1,144,971.18 = 257,877.36 : x
  2. Step 2: Convert to fraction form
    763,314.12/1,144,971.18 = 257,877.36/x
  3. Step 3: Cross multiply
    763,314.12x = 1,144,971.18 × 257,877.36
  4. Step 4: Simplify right side
    763,314.12x = 295,262,145,174.49
  5. Step 5: Solve for x
    x = 295,262,145,174.49/763,314.12
  6. Step 6: Final answer
    x = 386,816.04

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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.