Home / 1,065,788.80-1,600,432.80-712,369.60

Finding the Fourth Proportional to 1,065,788.80, 1,600,432.80 and 712,369.60

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Solution

The fourth proportional to 1,065,788.80, 1,600,432.80 and 712,369.60 is: 1,069,723.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,065,788.80 : 1,600,432.80 = 712,369.60 : x
  2. Step 2: Convert to fraction form
    1,065,788.80/1,600,432.80 = 712,369.60/x
  3. Step 3: Cross multiply
    1,065,788.80x = 1,600,432.80 × 712,369.60
  4. Step 4: Simplify right side
    1,065,788.80x = 1,140,099,673,562.88
  5. Step 5: Solve for x
    x = 1,140,099,673,562.88/1,065,788.80
  6. Step 6: Final answer
    x = 1,069,723.83

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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.