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Finding the Fourth Proportional to 615.68, 848.64 and 581.12

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Solution

The fourth proportional to 615.68, 848.64 and 581.12 is: 801.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.68 : 848.64 = 581.12 : x
  2. Step 2: Convert to fraction form
    615.68/848.64 = 581.12/x
  3. Step 3: Cross multiply
    615.68x = 848.64 × 581.12
  4. Step 4: Simplify right side
    615.68x = 493,161.68
  5. Step 5: Solve for x
    x = 493,161.68/615.68
  6. Step 6: Final answer
    x = 801.00

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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.