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Finding the Fourth Proportional to 607,463.57, 911,220.26 and 208,378.79

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Solution

The fourth proportional to 607,463.57, 911,220.26 and 208,378.79 is: 312,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,463.57 : 911,220.26 = 208,378.79 : x
  2. Step 2: Convert to fraction form
    607,463.57/911,220.26 = 208,378.79/x
  3. Step 3: Cross multiply
    607,463.57x = 911,220.26 × 208,378.79
  4. Step 4: Simplify right side
    607,463.57x = 189,878,975,202.29
  5. Step 5: Solve for x
    x = 189,878,975,202.29/607,463.57
  6. Step 6: Final answer
    x = 312,576.73

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1.5x scale

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.