Home / 1,431,195.40-1,975,061.94-786,630.58

Finding the Fourth Proportional to 1,431,195.40, 1,975,061.94 and 786,630.58

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Solution

The fourth proportional to 1,431,195.40, 1,975,061.94 and 786,630.58 is: 1,085,556.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,195.40 : 1,975,061.94 = 786,630.58 : x
  2. Step 2: Convert to fraction form
    1,431,195.40/1,975,061.94 = 786,630.58/x
  3. Step 3: Cross multiply
    1,431,195.40x = 1,975,061.94 × 786,630.58
  4. Step 4: Simplify right side
    1,431,195.40x = 1,553,644,119,398.13
  5. Step 5: Solve for x
    x = 1,553,644,119,398.13/1,431,195.40
  6. Step 6: Final answer
    x = 1,085,556.95

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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.