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Finding the Fourth Proportional to 632.40, 948.60 and 624.30

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Solution

The fourth proportional to 632.40, 948.60 and 624.30 is: 936.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    632.40 : 948.60 = 624.30 : x
  2. Step 2: Convert to fraction form
    632.40/948.60 = 624.30/x
  3. Step 3: Cross multiply
    632.40x = 948.60 × 624.30
  4. Step 4: Simplify right side
    632.40x = 592,210.98
  5. Step 5: Solve for x
    x = 592,210.98/632.40
  6. Step 6: Final answer
    x = 936.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.