Home / 1,189,061.70-1,783,592.55-763,908.90

Finding the Fourth Proportional to 1,189,061.70, 1,783,592.55 and 763,908.90

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Solution

The fourth proportional to 1,189,061.70, 1,783,592.55 and 763,908.90 is: 1,145,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,061.70 : 1,783,592.55 = 763,908.90 : x
  2. Step 2: Convert to fraction form
    1,189,061.70/1,783,592.55 = 763,908.90/x
  3. Step 3: Cross multiply
    1,189,061.70x = 1,783,592.55 × 763,908.90
  4. Step 4: Simplify right side
    1,189,061.70x = 1,362,502,222,918.70
  5. Step 5: Solve for x
    x = 1,362,502,222,918.70/1,189,061.70
  6. Step 6: Final answer
    x = 1,145,863.35

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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.