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Finding the Fourth Proportional to 662,415.20, 993,676.80 and 283,338.80

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Solution

The fourth proportional to 662,415.20, 993,676.80 and 283,338.80 is: 425,031.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,415.20 : 993,676.80 = 283,338.80 : x
  2. Step 2: Convert to fraction form
    662,415.20/993,676.80 = 283,338.80/x
  3. Step 3: Cross multiply
    662,415.20x = 993,676.80 × 283,338.80
  4. Step 4: Simplify right side
    662,415.20x = 281,547,192,099.84
  5. Step 5: Solve for x
    x = 281,547,192,099.84/662,415.20
  6. Step 6: Final answer
    x = 425,031.30

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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.