Home / 763,040.70-1,144,549.40-257,956.47

Finding the Fourth Proportional to 763,040.70, 1,144,549.40 and 257,956.47

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Solution

The fourth proportional to 763,040.70, 1,144,549.40 and 257,956.47 is: 386,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,040.70 : 1,144,549.40 = 257,956.47 : x
  2. Step 2: Convert to fraction form
    763,040.70/1,144,549.40 = 257,956.47/x
  3. Step 3: Cross multiply
    763,040.70x = 1,144,549.40 × 257,956.47
  4. Step 4: Simplify right side
    763,040.70x = 295,243,922,964.62
  5. Step 5: Solve for x
    x = 295,243,922,964.62/763,040.70
  6. Step 6: Final answer
    x = 386,930.77

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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.