Home / 1,114,678.72-1,538,351.49-631,329.85

Finding the Fourth Proportional to 1,114,678.72, 1,538,351.49 and 631,329.85

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Solution

The fourth proportional to 1,114,678.72, 1,538,351.49 and 631,329.85 is: 871,288.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,114,678.72 : 1,538,351.49 = 631,329.85 : x
  2. Step 2: Convert to fraction form
    1,114,678.72/1,538,351.49 = 631,329.85/x
  3. Step 3: Cross multiply
    1,114,678.72x = 1,538,351.49 × 631,329.85
  4. Step 4: Simplify right side
    1,114,678.72x = 971,207,215,428.98
  5. Step 5: Solve for x
    x = 971,207,215,428.98/1,114,678.72
  6. Step 6: Final answer
    x = 871,288.92

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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.