Home / 1,580,836-2,181,553.68-865,444

Finding the Fourth Proportional to 1,580,836, 2,181,553.68 and 865,444

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Solution

The fourth proportional to 1,580,836, 2,181,553.68 and 865,444 is: 1,194,312.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,580,836 : 2,181,553.68 = 865,444 : x
  2. Step 2: Convert to fraction form
    1,580,836/2,181,553.68 = 865,444/x
  3. Step 3: Cross multiply
    1,580,836x = 2,181,553.68 × 865,444
  4. Step 4: Simplify right side
    1,580,836x = 1,888,012,543,033.92
  5. Step 5: Solve for x
    x = 1,888,012,543,033.92/1,580,836
  6. Step 6: Final answer
    x = 1,194,312.72

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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.