Home / 838,507.17-1,157,114.62-465,968.82

Finding the Fourth Proportional to 838,507.17, 1,157,114.62 and 465,968.82

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Solution

The fourth proportional to 838,507.17, 1,157,114.62 and 465,968.82 is: 643,022.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,507.17 : 1,157,114.62 = 465,968.82 : x
  2. Step 2: Convert to fraction form
    838,507.17/1,157,114.62 = 465,968.82/x
  3. Step 3: Cross multiply
    838,507.17x = 1,157,114.62 × 465,968.82
  4. Step 4: Simplify right side
    838,507.17x = 539,179,334,086.15
  5. Step 5: Solve for x
    x = 539,179,334,086.15/838,507.17
  6. Step 6: Final answer
    x = 643,022.93

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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.