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Finding the Fourth Proportional to 698.02, 962.28 and 477.50

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Solution

The fourth proportional to 698.02, 962.28 and 477.50 is: 658.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.02 : 962.28 = 477.50 : x
  2. Step 2: Convert to fraction form
    698.02/962.28 = 477.50/x
  3. Step 3: Cross multiply
    698.02x = 962.28 × 477.50
  4. Step 4: Simplify right side
    698.02x = 459,483.89
  5. Step 5: Solve for x
    x = 459,483.89/698.02
  6. Step 6: Final answer
    x = 658.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.