Home / 1,289,309.94-1,931,307.03-755,211.69

Finding the Fourth Proportional to 1,289,309.94, 1,931,307.03 and 755,211.69

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Solution

The fourth proportional to 1,289,309.94, 1,931,307.03 and 755,211.69 is: 1,131,260.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,309.94 : 1,931,307.03 = 755,211.69 : x
  2. Step 2: Convert to fraction form
    1,289,309.94/1,931,307.03 = 755,211.69/x
  3. Step 3: Cross multiply
    1,289,309.94x = 1,931,307.03 × 755,211.69
  4. Step 4: Simplify right side
    1,289,309.94x = 1,458,545,646,035.18
  5. Step 5: Solve for x
    x = 1,458,545,646,035.18/1,289,309.94
  6. Step 6: Final answer
    x = 1,131,260.69

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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.