Home / 1,439,312.31-1,985,534.24-858,126.29

Finding the Fourth Proportional to 1,439,312.31, 1,985,534.24 and 858,126.29

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Solution

The fourth proportional to 1,439,312.31, 1,985,534.24 and 858,126.29 is: 1,183,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,312.31 : 1,985,534.24 = 858,126.29 : x
  2. Step 2: Convert to fraction form
    1,439,312.31/1,985,534.24 = 858,126.29/x
  3. Step 3: Cross multiply
    1,439,312.31x = 1,985,534.24 × 858,126.29
  4. Step 4: Simplify right side
    1,439,312.31x = 1,703,839,132,437.78
  5. Step 5: Solve for x
    x = 1,703,839,132,437.78/1,439,312.31
  6. Step 6: Final answer
    x = 1,183,786.95

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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.