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Finding the Fourth Proportional to 647,031.20, 970,546.80 and 595,855.40

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Solution

The fourth proportional to 647,031.20, 970,546.80 and 595,855.40 is: 893,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,031.20 : 970,546.80 = 595,855.40 : x
  2. Step 2: Convert to fraction form
    647,031.20/970,546.80 = 595,855.40/x
  3. Step 3: Cross multiply
    647,031.20x = 970,546.80 × 595,855.40
  4. Step 4: Simplify right side
    647,031.20x = 578,305,551,732.72
  5. Step 5: Solve for x
    x = 578,305,551,732.72/647,031.20
  6. Step 6: Final answer
    x = 893,783.10

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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.