Home / 1,438,589.08-2,157,883.02-427,706.66

Finding the Fourth Proportional to 1,438,589.08, 2,157,883.02 and 427,706.66

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Solution

The fourth proportional to 1,438,589.08, 2,157,883.02 and 427,706.66 is: 641,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,589.08 : 2,157,883.02 = 427,706.66 : x
  2. Step 2: Convert to fraction form
    1,438,589.08/2,157,883.02 = 427,706.66/x
  3. Step 3: Cross multiply
    1,438,589.08x = 2,157,883.02 × 427,706.66
  4. Step 4: Simplify right side
    1,438,589.08x = 922,940,939,154.91
  5. Step 5: Solve for x
    x = 922,940,939,154.91/1,438,589.08
  6. Step 6: Final answer
    x = 641,559.81

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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.