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Finding the Fourth Proportional to 615.01, 848.46 and 440.59

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Solution

The fourth proportional to 615.01, 848.46 and 440.59 is: 607.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.01 : 848.46 = 440.59 : x
  2. Step 2: Convert to fraction form
    615.01/848.46 = 440.59/x
  3. Step 3: Cross multiply
    615.01x = 848.46 × 440.59
  4. Step 4: Simplify right side
    615.01x = 373,822.99
  5. Step 5: Solve for x
    x = 373,822.99/615.01
  6. Step 6: Final answer
    x = 607.83

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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.