Home / 658,334.31-987,535.62-209,090.34

Finding the Fourth Proportional to 658,334.31, 987,535.62 and 209,090.34

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Solution

The fourth proportional to 658,334.31, 987,535.62 and 209,090.34 is: 313,646.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,334.31 : 987,535.62 = 209,090.34 : x
  2. Step 2: Convert to fraction form
    658,334.31/987,535.62 = 209,090.34/x
  3. Step 3: Cross multiply
    658,334.31x = 987,535.62 × 209,090.34
  4. Step 4: Simplify right side
    658,334.31x = 206,484,158,547.91
  5. Step 5: Solve for x
    x = 206,484,158,547.91/658,334.31
  6. Step 6: Final answer
    x = 313,646.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.