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Finding the Fourth Proportional to 580.76, 801.22 and 370.94

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Solution

The fourth proportional to 580.76, 801.22 and 370.94 is: 511.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.76 : 801.22 = 370.94 : x
  2. Step 2: Convert to fraction form
    580.76/801.22 = 370.94/x
  3. Step 3: Cross multiply
    580.76x = 801.22 × 370.94
  4. Step 4: Simplify right side
    580.76x = 297,207.48
  5. Step 5: Solve for x
    x = 297,207.48/580.76
  6. Step 6: Final answer
    x = 511.76

Related Problems

Find fourth proportional to 290.38, 400.61 and 185.47
Half scale
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Double scale
Find fourth proportional to 581.76, 802.60 and 371.94
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.