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Finding the Fourth Proportional to 627,254.40, 940,190.40 and 346,972.80

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Solution

The fourth proportional to 627,254.40, 940,190.40 and 346,972.80 is: 520,076.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,254.40 : 940,190.40 = 346,972.80 : x
  2. Step 2: Convert to fraction form
    627,254.40/940,190.40 = 346,972.80/x
  3. Step 3: Cross multiply
    627,254.40x = 940,190.40 × 346,972.80
  4. Step 4: Simplify right side
    627,254.40x = 326,220,495,621.12
  5. Step 5: Solve for x
    x = 326,220,495,621.12/627,254.40
  6. Step 6: Final answer
    x = 520,076.85

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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.