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Finding the Fourth Proportional to 612.04, 913.58 and 539.14

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Solution

The fourth proportional to 612.04, 913.58 and 539.14 is: 804.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    612.04 : 913.58 = 539.14 : x
  2. Step 2: Convert to fraction form
    612.04/913.58 = 539.14/x
  3. Step 3: Cross multiply
    612.04x = 913.58 × 539.14
  4. Step 4: Simplify right side
    612.04x = 492,547.52
  5. Step 5: Solve for x
    x = 492,547.52/612.04
  6. Step 6: Final answer
    x = 804.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.