Home / 808,047.47-1,212,428.28-423,704.57

Finding the Fourth Proportional to 808,047.47, 1,212,428.28 and 423,704.57

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Solution

The fourth proportional to 808,047.47, 1,212,428.28 and 423,704.57 is: 635,744.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,047.47 : 1,212,428.28 = 423,704.57 : x
  2. Step 2: Convert to fraction form
    808,047.47/1,212,428.28 = 423,704.57/x
  3. Step 3: Cross multiply
    808,047.47x = 1,212,428.28 × 423,704.57
  4. Step 4: Simplify right side
    808,047.47x = 513,711,396,971.10
  5. Step 5: Solve for x
    x = 513,711,396,971.10/808,047.47
  6. Step 6: Final answer
    x = 635,744.09

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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.