Home / 1,289,332.40-1,931,340.78-755,234.19

Finding the Fourth Proportional to 1,289,332.40, 1,931,340.78 and 755,234.19

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Solution

The fourth proportional to 1,289,332.40, 1,931,340.78 and 755,234.19 is: 1,131,294.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,332.40 : 1,931,340.78 = 755,234.19 : x
  2. Step 2: Convert to fraction form
    1,289,332.40/1,931,340.78 = 755,234.19/x
  3. Step 3: Cross multiply
    1,289,332.40x = 1,931,340.78 × 755,234.19
  4. Step 4: Simplify right side
    1,289,332.40x = 1,458,614,589,597.27
  5. Step 5: Solve for x
    x = 1,458,614,589,597.27/1,289,332.40
  6. Step 6: Final answer
    x = 1,131,294.46

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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.