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Finding the Fourth Proportional to 603.04, 900.20 and 557.32

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Solution

The fourth proportional to 603.04, 900.20 and 557.32 is: 831.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.04 : 900.20 = 557.32 : x
  2. Step 2: Convert to fraction form
    603.04/900.20 = 557.32/x
  3. Step 3: Cross multiply
    603.04x = 900.20 × 557.32
  4. Step 4: Simplify right side
    603.04x = 501,699.46
  5. Step 5: Solve for x
    x = 501,699.46/603.04
  6. Step 6: Final answer
    x = 831.95

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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.