Home / 1,491,125.40-2,236,688.10-426,202.20

Finding the Fourth Proportional to 1,491,125.40, 2,236,688.10 and 426,202.20

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Solution

The fourth proportional to 1,491,125.40, 2,236,688.10 and 426,202.20 is: 639,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491,125.40 : 2,236,688.10 = 426,202.20 : x
  2. Step 2: Convert to fraction form
    1,491,125.40/2,236,688.10 = 426,202.20/x
  3. Step 3: Cross multiply
    1,491,125.40x = 2,236,688.10 × 426,202.20
  4. Step 4: Simplify right side
    1,491,125.40x = 953,281,388,933.82
  5. Step 5: Solve for x
    x = 953,281,388,933.82/1,491,125.40
  6. Step 6: Final answer
    x = 639,303.30

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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.