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Finding the Fourth Proportional to 647,972.19, 894,200.31 and 361,475.19

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Solution

The fourth proportional to 647,972.19, 894,200.31 and 361,475.19 is: 498,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,972.19 : 894,200.31 = 361,475.19 : x
  2. Step 2: Convert to fraction form
    647,972.19/894,200.31 = 361,475.19/x
  3. Step 3: Cross multiply
    647,972.19x = 894,200.31 × 361,475.19
  4. Step 4: Simplify right side
    647,972.19x = 323,231,226,955.31
  5. Step 5: Solve for x
    x = 323,231,226,955.31/647,972.19
  6. Step 6: Final answer
    x = 498,835.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.