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Finding the Fourth Proportional to 510.61, 703.33 and 476.59

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Solution

The fourth proportional to 510.61, 703.33 and 476.59 is: 656.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.61 : 703.33 = 476.59 : x
  2. Step 2: Convert to fraction form
    510.61/703.33 = 476.59/x
  3. Step 3: Cross multiply
    510.61x = 703.33 × 476.59
  4. Step 4: Simplify right side
    510.61x = 335,200.04
  5. Step 5: Solve for x
    x = 335,200.04/510.61
  6. Step 6: Final answer
    x = 656.47

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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.