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Finding the Fourth Proportional to 562.08, 840.78 and 473.07

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Solution

The fourth proportional to 562.08, 840.78 and 473.07 is: 707.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.08 : 840.78 = 473.07 : x
  2. Step 2: Convert to fraction form
    562.08/840.78 = 473.07/x
  3. Step 3: Cross multiply
    562.08x = 840.78 × 473.07
  4. Step 4: Simplify right side
    562.08x = 397,747.79
  5. Step 5: Solve for x
    x = 397,747.79/562.08
  6. Step 6: Final answer
    x = 707.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.