Home / 1,126,571.18-1,554,730.48-643,291.56

Finding the Fourth Proportional to 1,126,571.18, 1,554,730.48 and 643,291.56

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Solution

The fourth proportional to 1,126,571.18, 1,554,730.48 and 643,291.56 is: 887,777.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,571.18 : 1,554,730.48 = 643,291.56 : x
  2. Step 2: Convert to fraction form
    1,126,571.18/1,554,730.48 = 643,291.56/x
  3. Step 3: Cross multiply
    1,126,571.18x = 1,554,730.48 × 643,291.56
  4. Step 4: Simplify right side
    1,126,571.18x = 1,000,144,995,858.75
  5. Step 5: Solve for x
    x = 1,000,144,995,858.75/1,126,571.18
  6. Step 6: Final answer
    x = 887,777.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.