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Finding the Fourth Proportional to 608,096.74, 912,293.76 and 428,532.42

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Solution

The fourth proportional to 608,096.74, 912,293.76 and 428,532.42 is: 642,903.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,096.74 : 912,293.76 = 428,532.42 : x
  2. Step 2: Convert to fraction form
    608,096.74/912,293.76 = 428,532.42/x
  3. Step 3: Cross multiply
    608,096.74x = 912,293.76 × 428,532.42
  4. Step 4: Simplify right side
    608,096.74x = 390,947,452,723.70
  5. Step 5: Solve for x
    x = 390,947,452,723.70/608,096.74
  6. Step 6: Final answer
    x = 642,903.39

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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.