Home / 804,511.31-1,109,908.16-518,197.57

Finding the Fourth Proportional to 804,511.31, 1,109,908.16 and 518,197.57

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Solution

The fourth proportional to 804,511.31, 1,109,908.16 and 518,197.57 is: 714,908.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,511.31 : 1,109,908.16 = 518,197.57 : x
  2. Step 2: Convert to fraction form
    804,511.31/1,109,908.16 = 518,197.57/x
  3. Step 3: Cross multiply
    804,511.31x = 1,109,908.16 × 518,197.57
  4. Step 4: Simplify right side
    804,511.31x = 575,151,703,294.64
  5. Step 5: Solve for x
    x = 575,151,703,294.64/804,511.31
  6. Step 6: Final answer
    x = 714,908.16

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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.