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Finding the Fourth Proportional to 1,053,810, 1,580,715 and 388,962

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Solution

The fourth proportional to 1,053,810, 1,580,715 and 388,962 is: 583,443

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,810 : 1,580,715 = 388,962 : x
  2. Step 2: Convert to fraction form
    1,053,810/1,580,715 = 388,962/x
  3. Step 3: Cross multiply
    1,053,810x = 1,580,715 × 388,962
  4. Step 4: Simplify right side
    1,053,810x = 614,838,067,830
  5. Step 5: Solve for x
    x = 614,838,067,830/1,053,810
  6. Step 6: Final answer
    x = 583,443

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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.