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Finding the Fourth Proportional to 583.47, 874.57 and 291.19

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Solution

The fourth proportional to 583.47, 874.57 and 291.19 is: 436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    583.47 : 874.57 = 291.19 : x
  2. Step 2: Convert to fraction form
    583.47/874.57 = 291.19/x
  3. Step 3: Cross multiply
    583.47x = 874.57 × 291.19
  4. Step 4: Simplify right side
    583.47x = 254,667.50
  5. Step 5: Solve for x
    x = 254,667.50/583.47
  6. Step 6: Final answer
    x = 436.47

Related Problems

Find fourth proportional to 291.74, 437.29 and 145.60
Half scale
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Double scale
Find fourth proportional to 584.47, 876.07 and 292.19
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.