Home / 1,330,488.40-1,835,553-820,305.04

Finding the Fourth Proportional to 1,330,488.40, 1,835,553 and 820,305.04

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Solution

The fourth proportional to 1,330,488.40, 1,835,553 and 820,305.04 is: 1,131,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,488.40 : 1,835,553 = 820,305.04 : x
  2. Step 2: Convert to fraction form
    1,330,488.40/1,835,553 = 820,305.04/x
  3. Step 3: Cross multiply
    1,330,488.40x = 1,835,553 × 820,305.04
  4. Step 4: Simplify right side
    1,330,488.40x = 1,505,713,377,087.12
  5. Step 5: Solve for x
    x = 1,505,713,377,087.12/1,330,488.40
  6. Step 6: Final answer
    x = 1,131,699.74

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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.