Home / 1,431,133.98-1,975,017.03-786,603.42

Finding the Fourth Proportional to 1,431,133.98, 1,975,017.03 and 786,603.42

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Solution

The fourth proportional to 1,431,133.98, 1,975,017.03 and 786,603.42 is: 1,085,541.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,133.98 : 1,975,017.03 = 786,603.42 : x
  2. Step 2: Convert to fraction form
    1,431,133.98/1,975,017.03 = 786,603.42/x
  3. Step 3: Cross multiply
    1,431,133.98x = 1,975,017.03 × 786,603.42
  4. Step 4: Simplify right side
    1,431,133.98x = 1,553,555,150,356.24
  5. Step 5: Solve for x
    x = 1,553,555,150,356.24/1,431,133.98
  6. Step 6: Final answer
    x = 1,085,541.38

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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.