Home / 1,421,811-2,132,506.26-523,042.56

Finding the Fourth Proportional to 1,421,811, 2,132,506.26 and 523,042.56

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Solution

The fourth proportional to 1,421,811, 2,132,506.26 and 523,042.56 is: 784,486.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,811 : 2,132,506.26 = 523,042.56 : x
  2. Step 2: Convert to fraction form
    1,421,811/2,132,506.26 = 523,042.56/x
  3. Step 3: Cross multiply
    1,421,811x = 2,132,506.26 × 523,042.56
  4. Step 4: Simplify right side
    1,421,811x = 1,115,391,533,446.43
  5. Step 5: Solve for x
    x = 1,115,391,533,446.43/1,421,811
  6. Step 6: Final answer
    x = 784,486.50

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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.