Home / 1,117,136.01-1,536,810-978,691.47

Finding the Fourth Proportional to 1,117,136.01, 1,536,810 and 978,691.47

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Solution

The fourth proportional to 1,117,136.01, 1,536,810 and 978,691.47 is: 1,346,356.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,136.01 : 1,536,810 = 978,691.47 : x
  2. Step 2: Convert to fraction form
    1,117,136.01/1,536,810 = 978,691.47/x
  3. Step 3: Cross multiply
    1,117,136.01x = 1,536,810 × 978,691.47
  4. Step 4: Simplify right side
    1,117,136.01x = 1,504,062,838,010.70
  5. Step 5: Solve for x
    x = 1,504,062,838,010.70/1,117,136.01
  6. Step 6: Final answer
    x = 1,346,356.06

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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.