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Finding the Fourth Proportional to 583.60, 875.05 and 291.09

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Solution

The fourth proportional to 583.60, 875.05 and 291.09 is: 436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.60 : 875.05 = 291.09 : x
  2. Step 2: Convert to fraction form
    583.60/875.05 = 291.09/x
  3. Step 3: Cross multiply
    583.60x = 875.05 × 291.09
  4. Step 4: Simplify right side
    583.60x = 254,718.30
  5. Step 5: Solve for x
    x = 254,718.30/583.60
  6. Step 6: Final answer
    x = 436.46

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.