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Finding the Fourth Proportional to 612,984.54, 919,467.57 and 275,787.08

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Solution

The fourth proportional to 612,984.54, 919,467.57 and 275,787.08 is: 413,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,984.54 : 919,467.57 = 275,787.08 : x
  2. Step 2: Convert to fraction form
    612,984.54/919,467.57 = 275,787.08/x
  3. Step 3: Cross multiply
    612,984.54x = 919,467.57 × 275,787.08
  4. Step 4: Simplify right side
    612,984.54x = 253,577,271,687.66
  5. Step 5: Solve for x
    x = 253,577,271,687.66/612,984.54
  6. Step 6: Final answer
    x = 413,676.45

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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.