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Finding the Fourth Proportional to 608,082.60, 912,383.10 and 383,615.40

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Solution

The fourth proportional to 608,082.60, 912,383.10 and 383,615.40 is: 575,586.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,082.60 : 912,383.10 = 383,615.40 : x
  2. Step 2: Convert to fraction form
    608,082.60/912,383.10 = 383,615.40/x
  3. Step 3: Cross multiply
    608,082.60x = 912,383.10 × 383,615.40
  4. Step 4: Simplify right side
    608,082.60x = 350,004,207,859.74
  5. Step 5: Solve for x
    x = 350,004,207,859.74/608,082.60
  6. Step 6: Final answer
    x = 575,586.62

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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.