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Finding the Fourth Proportional to 603.70, 899.52 and 577.16

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Solution

The fourth proportional to 603.70, 899.52 and 577.16 is: 859.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    603.70 : 899.52 = 577.16 : x
  2. Step 2: Convert to fraction form
    603.70/899.52 = 577.16/x
  3. Step 3: Cross multiply
    603.70x = 899.52 × 577.16
  4. Step 4: Simplify right side
    603.70x = 519,166.96
  5. Step 5: Solve for x
    x = 519,166.96/603.70
  6. Step 6: Final answer
    x = 859.98

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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.