Home / 1,187,609.85-1,781,389.85-289,056.60

Finding the Fourth Proportional to 1,187,609.85, 1,781,389.85 and 289,056.60

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Solution

The fourth proportional to 1,187,609.85, 1,781,389.85 and 289,056.60 is: 433,578.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,609.85 : 1,781,389.85 = 289,056.60 : x
  2. Step 2: Convert to fraction form
    1,187,609.85/1,781,389.85 = 289,056.60/x
  3. Step 3: Cross multiply
    1,187,609.85x = 1,781,389.85 × 289,056.60
  4. Step 4: Simplify right side
    1,187,609.85x = 514,922,491,870.23
  5. Step 5: Solve for x
    x = 514,922,491,870.23/1,187,609.85
  6. Step 6: Final answer
    x = 433,578.83

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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.