Home / 642,017.20-962,334.60-242,503.60

Finding the Fourth Proportional to 642,017.20, 962,334.60 and 242,503.60

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Solution

The fourth proportional to 642,017.20, 962,334.60 and 242,503.60 is: 363,494.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,017.20 : 962,334.60 = 242,503.60 : x
  2. Step 2: Convert to fraction form
    642,017.20/962,334.60 = 242,503.60/x
  3. Step 3: Cross multiply
    642,017.20x = 962,334.60 × 242,503.60
  4. Step 4: Simplify right side
    642,017.20x = 233,369,604,904.56
  5. Step 5: Solve for x
    x = 233,369,604,904.56/642,017.20
  6. Step 6: Final answer
    x = 363,494.32

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Double scale
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Similar ratio
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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.