Home / 636,839.16-878,838.03-350,353.10

Finding the Fourth Proportional to 636,839.16, 878,838.03 and 350,353.10

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Solution

The fourth proportional to 636,839.16, 878,838.03 and 350,353.10 is: 483,487.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,839.16 : 878,838.03 = 350,353.10 : x
  2. Step 2: Convert to fraction form
    636,839.16/878,838.03 = 350,353.10/x
  3. Step 3: Cross multiply
    636,839.16x = 878,838.03 × 350,353.10
  4. Step 4: Simplify right side
    636,839.16x = 307,903,623,814.20
  5. Step 5: Solve for x
    x = 307,903,623,814.20/636,839.16
  6. Step 6: Final answer
    x = 483,487.27

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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.