Home / 642,140.20-962,519.10-242,626.60

Finding the Fourth Proportional to 642,140.20, 962,519.10 and 242,626.60

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Solution

The fourth proportional to 642,140.20, 962,519.10 and 242,626.60 is: 363,678.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,140.20 : 962,519.10 = 242,626.60 : x
  2. Step 2: Convert to fraction form
    642,140.20/962,519.10 = 242,626.60/x
  3. Step 3: Cross multiply
    642,140.20x = 962,519.10 × 242,626.60
  4. Step 4: Simplify right side
    642,140.20x = 233,532,736,668.06
  5. Step 5: Solve for x
    x = 233,532,736,668.06/642,140.20
  6. Step 6: Final answer
    x = 363,678.74

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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.