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Finding the Fourth Proportional to 693,872.82, 1,038,930.03 and 360,748.98

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Solution

The fourth proportional to 693,872.82, 1,038,930.03 and 360,748.98 is: 540,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,872.82 : 1,038,930.03 = 360,748.98 : x
  2. Step 2: Convert to fraction form
    693,872.82/1,038,930.03 = 360,748.98/x
  3. Step 3: Cross multiply
    693,872.82x = 1,038,930.03 × 360,748.98
  4. Step 4: Simplify right side
    693,872.82x = 374,792,948,613.87
  5. Step 5: Solve for x
    x = 374,792,948,613.87/693,872.82
  6. Step 6: Final answer
    x = 540,146.46

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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.