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Finding the Fourth Proportional to 607.80, 904.83 and 604.20

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Solution

The fourth proportional to 607.80, 904.83 and 604.20 is: 899.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.80 : 904.83 = 604.20 : x
  2. Step 2: Convert to fraction form
    607.80/904.83 = 604.20/x
  3. Step 3: Cross multiply
    607.80x = 904.83 × 604.20
  4. Step 4: Simplify right side
    607.80x = 546,698.29
  5. Step 5: Solve for x
    x = 546,698.29/607.80
  6. Step 6: Final answer
    x = 899.47

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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.