Home / 1,438,995.79-2,157,355.02-540,337.42

Finding the Fourth Proportional to 1,438,995.79, 2,157,355.02 and 540,337.42

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Solution

The fourth proportional to 1,438,995.79, 2,157,355.02 and 540,337.42 is: 810,078.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,995.79 : 2,157,355.02 = 540,337.42 : x
  2. Step 2: Convert to fraction form
    1,438,995.79/2,157,355.02 = 540,337.42/x
  3. Step 3: Cross multiply
    1,438,995.79x = 2,157,355.02 × 540,337.42
  4. Step 4: Simplify right side
    1,438,995.79x = 1,165,699,640,137.46
  5. Step 5: Solve for x
    x = 1,165,699,640,137.46/1,438,995.79
  6. Step 6: Final answer
    x = 810,078.56

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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.