Home / 985,615.11-1,477,856.76-385,874.10

Finding the Fourth Proportional to 985,615.11, 1,477,856.76 and 385,874.10

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Solution

The fourth proportional to 985,615.11, 1,477,856.76 and 385,874.10 is: 578,589.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,615.11 : 1,477,856.76 = 385,874.10 : x
  2. Step 2: Convert to fraction form
    985,615.11/1,477,856.76 = 385,874.10/x
  3. Step 3: Cross multiply
    985,615.11x = 1,477,856.76 × 385,874.10
  4. Step 4: Simplify right side
    985,615.11x = 570,266,647,193.92
  5. Step 5: Solve for x
    x = 570,266,647,193.92/985,615.11
  6. Step 6: Final answer
    x = 578,589.59

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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.