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Finding the Fourth Proportional to 592.76, 817.87 and 340.72

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Solution

The fourth proportional to 592.76, 817.87 and 340.72 is: 470.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.76 : 817.87 = 340.72 : x
  2. Step 2: Convert to fraction form
    592.76/817.87 = 340.72/x
  3. Step 3: Cross multiply
    592.76x = 817.87 × 340.72
  4. Step 4: Simplify right side
    592.76x = 278,664.67
  5. Step 5: Solve for x
    x = 278,664.67/592.76
  6. Step 6: Final answer
    x = 470.11

Related Problems

Find fourth proportional to 296.38, 408.94 and 170.36
Half scale
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Double scale
Find fourth proportional to 593.76, 819.25 and 341.72
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.