Home / 758,458.86-1,138,020.21-359,384.46

Finding the Fourth Proportional to 758,458.86, 1,138,020.21 and 359,384.46

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Solution

The fourth proportional to 758,458.86, 1,138,020.21 and 359,384.46 is: 539,233.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,458.86 : 1,138,020.21 = 359,384.46 : x
  2. Step 2: Convert to fraction form
    758,458.86/1,138,020.21 = 359,384.46/x
  3. Step 3: Cross multiply
    758,458.86x = 1,138,020.21 × 359,384.46
  4. Step 4: Simplify right side
    758,458.86x = 408,986,778,639.94
  5. Step 5: Solve for x
    x = 408,986,778,639.94/758,458.86
  6. Step 6: Final answer
    x = 539,233.97

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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.