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Finding the Fourth Proportional to 570.93, 785.84 and 476.61

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Solution

The fourth proportional to 570.93, 785.84 and 476.61 is: 656.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.93 : 785.84 = 476.61 : x
  2. Step 2: Convert to fraction form
    570.93/785.84 = 476.61/x
  3. Step 3: Cross multiply
    570.93x = 785.84 × 476.61
  4. Step 4: Simplify right side
    570.93x = 374,536.82
  5. Step 5: Solve for x
    x = 374,536.82/570.93
  6. Step 6: Final answer
    x = 656.01

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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.