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Finding the Fourth Proportional to 834,398.72, 1,250,855.70 and 301,801.28

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Solution

The fourth proportional to 834,398.72, 1,250,855.70 and 301,801.28 is: 452,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,398.72 : 1,250,855.70 = 301,801.28 : x
  2. Step 2: Convert to fraction form
    834,398.72/1,250,855.70 = 301,801.28/x
  3. Step 3: Cross multiply
    834,398.72x = 1,250,855.70 × 301,801.28
  4. Step 4: Simplify right side
    834,398.72x = 377,509,851,355.30
  5. Step 5: Solve for x
    x = 377,509,851,355.30/834,398.72
  6. Step 6: Final answer
    x = 452,433.40

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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.