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Finding the Fourth Proportional to 569.04, 785.79 and 458.16

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Solution

The fourth proportional to 569.04, 785.79 and 458.16 is: 632.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.04 : 785.79 = 458.16 : x
  2. Step 2: Convert to fraction form
    569.04/785.79 = 458.16/x
  3. Step 3: Cross multiply
    569.04x = 785.79 × 458.16
  4. Step 4: Simplify right side
    569.04x = 360,017.55
  5. Step 5: Solve for x
    x = 360,017.55/569.04
  6. Step 6: Final answer
    x = 632.68

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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.