Home / 779,720.10-1,169,968.95-443,019.30

Finding the Fourth Proportional to 779,720.10, 1,169,968.95 and 443,019.30

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Solution

The fourth proportional to 779,720.10, 1,169,968.95 and 443,019.30 is: 664,749.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,720.10 : 1,169,968.95 = 443,019.30 : x
  2. Step 2: Convert to fraction form
    779,720.10/1,169,968.95 = 443,019.30/x
  3. Step 3: Cross multiply
    779,720.10x = 1,169,968.95 × 443,019.30
  4. Step 4: Simplify right side
    779,720.10x = 518,318,825,250.74
  5. Step 5: Solve for x
    x = 518,318,825,250.74/779,720.10
  6. Step 6: Final answer
    x = 664,749.86

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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.