Home / 1,431,848.07-1,975,957.75-787,309.78

Finding the Fourth Proportional to 1,431,848.07, 1,975,957.75 and 787,309.78

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Solution

The fourth proportional to 1,431,848.07, 1,975,957.75 and 787,309.78 is: 1,086,491.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,848.07 : 1,975,957.75 = 787,309.78 : x
  2. Step 2: Convert to fraction form
    1,431,848.07/1,975,957.75 = 787,309.78/x
  3. Step 3: Cross multiply
    1,431,848.07x = 1,975,957.75 × 787,309.78
  4. Step 4: Simplify right side
    1,431,848.07x = 1,555,690,861,441.80
  5. Step 5: Solve for x
    x = 1,555,690,861,441.80/1,431,848.07
  6. Step 6: Final answer
    x = 1,086,491.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.