Home / 1,431,167.80-1,975,047.78-786,604.36

Finding the Fourth Proportional to 1,431,167.80, 1,975,047.78 and 786,604.36

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Solution

The fourth proportional to 1,431,167.80, 1,975,047.78 and 786,604.36 is: 1,085,533.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,167.80 : 1,975,047.78 = 786,604.36 : x
  2. Step 2: Convert to fraction form
    1,431,167.80/1,975,047.78 = 786,604.36/x
  3. Step 3: Cross multiply
    1,431,167.80x = 1,975,047.78 × 786,604.36
  4. Step 4: Simplify right side
    1,431,167.80x = 1,553,581,194,956.32
  5. Step 5: Solve for x
    x = 1,553,581,194,956.32/1,431,167.80
  6. Step 6: Final answer
    x = 1,085,533.92

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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.