Home / 761,740.96-1,142,760.90-281,972.96

Finding the Fourth Proportional to 761,740.96, 1,142,760.90 and 281,972.96

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Solution

The fourth proportional to 761,740.96, 1,142,760.90 and 281,972.96 is: 423,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,740.96 : 1,142,760.90 = 281,972.96 : x
  2. Step 2: Convert to fraction form
    761,740.96/1,142,760.90 = 281,972.96/x
  3. Step 3: Cross multiply
    761,740.96x = 1,142,760.90 × 281,972.96
  4. Step 4: Simplify right side
    761,740.96x = 322,227,673,545.26
  5. Step 5: Solve for x
    x = 322,227,673,545.26/761,740.96
  6. Step 6: Final answer
    x = 423,014.77

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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.