Home / 1,431,491.50-2,147,250.21-434,219.50

Finding the Fourth Proportional to 1,431,491.50, 2,147,250.21 and 434,219.50

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Solution

The fourth proportional to 1,431,491.50, 2,147,250.21 and 434,219.50 is: 651,333.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,491.50 : 2,147,250.21 = 434,219.50 : x
  2. Step 2: Convert to fraction form
    1,431,491.50/2,147,250.21 = 434,219.50/x
  3. Step 3: Cross multiply
    1,431,491.50x = 2,147,250.21 × 434,219.50
  4. Step 4: Simplify right side
    1,431,491.50x = 932,377,912,561.10
  5. Step 5: Solve for x
    x = 932,377,912,561.10/1,431,491.50
  6. Step 6: Final answer
    x = 651,333.18

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Double scale
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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.