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Finding the Fourth Proportional to 624.64, 933.28 and 603.12

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Solution

The fourth proportional to 624.64, 933.28 and 603.12 is: 901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.64 : 933.28 = 603.12 : x
  2. Step 2: Convert to fraction form
    624.64/933.28 = 603.12/x
  3. Step 3: Cross multiply
    624.64x = 933.28 × 603.12
  4. Step 4: Simplify right side
    624.64x = 562,879.83
  5. Step 5: Solve for x
    x = 562,879.83/624.64
  6. Step 6: Final answer
    x = 901.13

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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.