Home / 690,913.86-1,036,370.80-269,894.49

Finding the Fourth Proportional to 690,913.86, 1,036,370.80 and 269,894.49

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Solution

The fourth proportional to 690,913.86, 1,036,370.80 and 269,894.49 is: 404,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,913.86 : 1,036,370.80 = 269,894.49 : x
  2. Step 2: Convert to fraction form
    690,913.86/1,036,370.80 = 269,894.49/x
  3. Step 3: Cross multiply
    690,913.86x = 1,036,370.80 × 269,894.49
  4. Step 4: Simplify right side
    690,913.86x = 279,710,768,516.89
  5. Step 5: Solve for x
    x = 279,710,768,516.89/690,913.86
  6. Step 6: Final answer
    x = 404,841.74

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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.