Home / 1,182,317.20-1,631,602.75-666,077.28

Finding the Fourth Proportional to 1,182,317.20, 1,631,602.75 and 666,077.28

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Solution

The fourth proportional to 1,182,317.20, 1,631,602.75 and 666,077.28 is: 919,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,317.20 : 1,631,602.75 = 666,077.28 : x
  2. Step 2: Convert to fraction form
    1,182,317.20/1,631,602.75 = 666,077.28/x
  3. Step 3: Cross multiply
    1,182,317.20x = 1,631,602.75 × 666,077.28
  4. Step 4: Simplify right side
    1,182,317.20x = 1,086,773,515,694.10
  5. Step 5: Solve for x
    x = 1,086,773,515,694.10/1,182,317.20
  6. Step 6: Final answer
    x = 919,189.46

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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.