Home / 1,138,012.49-1,570,677.10-730,629.06

Finding the Fourth Proportional to 1,138,012.49, 1,570,677.10 and 730,629.06

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Solution

The fourth proportional to 1,138,012.49, 1,570,677.10 and 730,629.06 is: 1,008,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,012.49 : 1,570,677.10 = 730,629.06 : x
  2. Step 2: Convert to fraction form
    1,138,012.49/1,570,677.10 = 730,629.06/x
  3. Step 3: Cross multiply
    1,138,012.49x = 1,570,677.10 × 730,629.06
  4. Step 4: Simplify right side
    1,138,012.49x = 1,147,582,333,136.53
  5. Step 5: Solve for x
    x = 1,147,582,333,136.53/1,138,012.49
  6. Step 6: Final answer
    x = 1,008,409.26

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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.