Home / 1,439,326.89-1,985,553.72-858,140.19

Finding the Fourth Proportional to 1,439,326.89, 1,985,553.72 and 858,140.19

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Solution

The fourth proportional to 1,439,326.89, 1,985,553.72 and 858,140.19 is: 1,183,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,326.89 : 1,985,553.72 = 858,140.19 : x
  2. Step 2: Convert to fraction form
    1,439,326.89/1,985,553.72 = 858,140.19/x
  3. Step 3: Cross multiply
    1,439,326.89x = 1,985,553.72 × 858,140.19
  4. Step 4: Simplify right side
    1,439,326.89x = 1,703,883,439,366.40
  5. Step 5: Solve for x
    x = 1,703,883,439,366.40/1,439,326.89
  6. Step 6: Final answer
    x = 1,183,805.74

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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.