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Finding the Fourth Proportional to 570.75, 788.31 and 473.55

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Solution

The fourth proportional to 570.75, 788.31 and 473.55 is: 654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.75 : 788.31 = 473.55 : x
  2. Step 2: Convert to fraction form
    570.75/788.31 = 473.55/x
  3. Step 3: Cross multiply
    570.75x = 788.31 × 473.55
  4. Step 4: Simplify right side
    570.75x = 373,304.20
  5. Step 5: Solve for x
    x = 373,304.20/570.75
  6. Step 6: Final answer
    x = 654.06

Related Problems

Find fourth proportional to 285.38, 394.16 and 236.78
Half scale
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Double scale
Find fourth proportional to 571.75, 789.69 and 474.55
Similar ratio
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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.