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Finding the Fourth Proportional to 581.40, 801.36 and 441.36

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Solution

The fourth proportional to 581.40, 801.36 and 441.36 is: 608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.40 : 801.36 = 441.36 : x
  2. Step 2: Convert to fraction form
    581.40/801.36 = 441.36/x
  3. Step 3: Cross multiply
    581.40x = 801.36 × 441.36
  4. Step 4: Simplify right side
    581.40x = 353,688.25
  5. Step 5: Solve for x
    x = 353,688.25/581.40
  6. Step 6: Final answer
    x = 608.34

Related Problems

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Half scale
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Double scale
Find fourth proportional to 582.40, 802.74 and 442.36
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.