Home / 786,989.80-1,181,672.70-628,748.20

Finding the Fourth Proportional to 786,989.80, 1,181,672.70 and 628,748.20

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Solution

The fourth proportional to 786,989.80, 1,181,672.70 and 628,748.20 is: 944,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,989.80 : 1,181,672.70 = 628,748.20 : x
  2. Step 2: Convert to fraction form
    786,989.80/1,181,672.70 = 628,748.20/x
  3. Step 3: Cross multiply
    786,989.80x = 1,181,672.70 × 628,748.20
  4. Step 4: Simplify right side
    786,989.80x = 742,974,583,114.14
  5. Step 5: Solve for x
    x = 742,974,583,114.14/786,989.80
  6. Step 6: Final answer
    x = 944,071.43

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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.