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Finding the Fourth Proportional to 581.64, 876.15 and 574.08

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Solution

The fourth proportional to 581.64, 876.15 and 574.08 is: 864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.64 : 876.15 = 574.08 : x
  2. Step 2: Convert to fraction form
    581.64/876.15 = 574.08/x
  3. Step 3: Cross multiply
    581.64x = 876.15 × 574.08
  4. Step 4: Simplify right side
    581.64x = 502,980.19
  5. Step 5: Solve for x
    x = 502,980.19/581.64
  6. Step 6: Final answer
    x = 864.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.