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Finding the Fourth Proportional to 686.23, 946.52 and 582.01

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Solution

The fourth proportional to 686.23, 946.52 and 582.01 is: 802.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    686.23 : 946.52 = 582.01 : x
  2. Step 2: Convert to fraction form
    686.23/946.52 = 582.01/x
  3. Step 3: Cross multiply
    686.23x = 946.52 × 582.01
  4. Step 4: Simplify right side
    686.23x = 550,881.01
  5. Step 5: Solve for x
    x = 550,881.01/686.23
  6. Step 6: Final answer
    x = 802.77

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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.