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Finding the Fourth Proportional to 562,287.28, 775,975.82 and 307,638.44

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Solution

The fourth proportional to 562,287.28, 775,975.82 and 307,638.44 is: 424,551.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,287.28 : 775,975.82 = 307,638.44 : x
  2. Step 2: Convert to fraction form
    562,287.28/775,975.82 = 307,638.44/x
  3. Step 3: Cross multiply
    562,287.28x = 775,975.82 × 307,638.44
  4. Step 4: Simplify right side
    562,287.28x = 238,719,990,742.52
  5. Step 5: Solve for x
    x = 238,719,990,742.52/562,287.28
  6. Step 6: Final answer
    x = 424,551.65

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1.5x scale

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.