Home / 744,380.79-1,116,681.92-345,061.94

Finding the Fourth Proportional to 744,380.79, 1,116,681.92 and 345,061.94

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Solution

The fourth proportional to 744,380.79, 1,116,681.92 and 345,061.94 is: 517,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,380.79 : 1,116,681.92 = 345,061.94 : x
  2. Step 2: Convert to fraction form
    744,380.79/1,116,681.92 = 345,061.94/x
  3. Step 3: Cross multiply
    744,380.79x = 1,116,681.92 × 345,061.94
  4. Step 4: Simplify right side
    744,380.79x = 385,324,422,369.41
  5. Step 5: Solve for x
    x = 385,324,422,369.41/744,380.79
  6. Step 6: Final answer
    x = 517,644.23

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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.