Home / 521,145.04-781,852.30-305,186.14

Finding the Fourth Proportional to 521,145.04, 781,852.30 and 305,186.14

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Solution

The fourth proportional to 521,145.04, 781,852.30 and 305,186.14 is: 457,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,145.04 : 781,852.30 = 305,186.14 : x
  2. Step 2: Convert to fraction form
    521,145.04/781,852.30 = 305,186.14/x
  3. Step 3: Cross multiply
    521,145.04x = 781,852.30 × 305,186.14
  4. Step 4: Simplify right side
    521,145.04x = 238,610,485,487.12
  5. Step 5: Solve for x
    x = 238,610,485,487.12/521,145.04
  6. Step 6: Final answer
    x = 457,858.11

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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.