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Finding the Fourth Proportional to 662,487.40, 993,860.70 and 283,407.40

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Solution

The fourth proportional to 662,487.40, 993,860.70 and 283,407.40 is: 425,166.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,487.40 : 993,860.70 = 283,407.40 : x
  2. Step 2: Convert to fraction form
    662,487.40/993,860.70 = 283,407.40/x
  3. Step 3: Cross multiply
    662,487.40x = 993,860.70 × 283,407.40
  4. Step 4: Simplify right side
    662,487.40x = 281,667,476,949.18
  5. Step 5: Solve for x
    x = 281,667,476,949.18/662,487.40
  6. Step 6: Final answer
    x = 425,166.54

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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.