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Finding the Fourth Proportional to 594.77, 820.61 and 384.95

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Solution

The fourth proportional to 594.77, 820.61 and 384.95 is: 531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.77 : 820.61 = 384.95 : x
  2. Step 2: Convert to fraction form
    594.77/820.61 = 384.95/x
  3. Step 3: Cross multiply
    594.77x = 820.61 × 384.95
  4. Step 4: Simplify right side
    594.77x = 315,895.39
  5. Step 5: Solve for x
    x = 315,895.39/594.77
  6. Step 6: Final answer
    x = 531.13

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Find fourth proportional to 297.38, 410.30 and 192.48
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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.