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Finding the Fourth Proportional to 662,416.70, 993,679.05 and 283,340.30

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Solution

The fourth proportional to 662,416.70, 993,679.05 and 283,340.30 is: 425,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,416.70 : 993,679.05 = 283,340.30 : x
  2. Step 2: Convert to fraction form
    662,416.70/993,679.05 = 283,340.30/x
  3. Step 3: Cross multiply
    662,416.70x = 993,679.05 × 283,340.30
  4. Step 4: Simplify right side
    662,416.70x = 281,549,320,130.72
  5. Step 5: Solve for x
    x = 281,549,320,130.72/662,416.70
  6. Step 6: Final answer
    x = 425,033.55

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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.