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Finding the Fourth Proportional to 604.95, 907.76 and 558.51

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Solution

The fourth proportional to 604.95, 907.76 and 558.51 is: 838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.95 : 907.76 = 558.51 : x
  2. Step 2: Convert to fraction form
    604.95/907.76 = 558.51/x
  3. Step 3: Cross multiply
    604.95x = 907.76 × 558.51
  4. Step 4: Simplify right side
    604.95x = 506,993.04
  5. Step 5: Solve for x
    x = 506,993.04/604.95
  6. Step 6: Final answer
    x = 838.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.