Home / 761,633.71-1,142,526.42-281,989.75

Finding the Fourth Proportional to 761,633.71, 1,142,526.42 and 281,989.75

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Solution

The fourth proportional to 761,633.71, 1,142,526.42 and 281,989.75 is: 423,012.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,633.71 : 1,142,526.42 = 281,989.75 : x
  2. Step 2: Convert to fraction form
    761,633.71/1,142,526.42 = 281,989.75/x
  3. Step 3: Cross multiply
    761,633.71x = 1,142,526.42 × 281,989.75
  4. Step 4: Simplify right side
    761,633.71x = 322,180,743,105.49
  5. Step 5: Solve for x
    x = 322,180,743,105.49/761,633.71
  6. Step 6: Final answer
    x = 423,012.72

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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.