Home / 1,186,816.83-1,637,805.30-642,966.42

Finding the Fourth Proportional to 1,186,816.83, 1,637,805.30 and 642,966.42

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Solution

The fourth proportional to 1,186,816.83, 1,637,805.30 and 642,966.42 is: 887,292.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,816.83 : 1,637,805.30 = 642,966.42 : x
  2. Step 2: Convert to fraction form
    1,186,816.83/1,637,805.30 = 642,966.42/x
  3. Step 3: Cross multiply
    1,186,816.83x = 1,637,805.30 × 642,966.42
  4. Step 4: Simplify right side
    1,186,816.83x = 1,053,053,810,398.03
  5. Step 5: Solve for x
    x = 1,053,053,810,398.03/1,186,816.83
  6. Step 6: Final answer
    x = 887,292.62

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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.