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Finding the Fourth Proportional to 674,237.35, 930,475.82 and 387,757.67

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Solution

The fourth proportional to 674,237.35, 930,475.82 and 387,757.67 is: 535,121.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,237.35 : 930,475.82 = 387,757.67 : x
  2. Step 2: Convert to fraction form
    674,237.35/930,475.82 = 387,757.67/x
  3. Step 3: Cross multiply
    674,237.35x = 930,475.82 × 387,757.67
  4. Step 4: Simplify right side
    674,237.35x = 360,799,132,271.55
  5. Step 5: Solve for x
    x = 360,799,132,271.55/674,237.35
  6. Step 6: Final answer
    x = 535,121.84

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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.