Home / 1,689,955.14-2,534,934.60-427,782.78

Finding the Fourth Proportional to 1,689,955.14, 2,534,934.60 and 427,782.78

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Solution

The fourth proportional to 1,689,955.14, 2,534,934.60 and 427,782.78 is: 641,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,955.14 : 2,534,934.60 = 427,782.78 : x
  2. Step 2: Convert to fraction form
    1,689,955.14/2,534,934.60 = 427,782.78/x
  3. Step 3: Cross multiply
    1,689,955.14x = 2,534,934.60 × 427,782.78
  4. Step 4: Simplify right side
    1,689,955.14x = 1,084,401,370,306.19
  5. Step 5: Solve for x
    x = 1,084,401,370,306.19/1,689,955.14
  6. Step 6: Final answer
    x = 641,674.65

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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.