Home / 784,311.42-1,082,260.76-440,102.28

Finding the Fourth Proportional to 784,311.42, 1,082,260.76 and 440,102.28

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Solution

The fourth proportional to 784,311.42, 1,082,260.76 and 440,102.28 is: 607,291.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,311.42 : 1,082,260.76 = 440,102.28 : x
  2. Step 2: Convert to fraction form
    784,311.42/1,082,260.76 = 440,102.28/x
  3. Step 3: Cross multiply
    784,311.42x = 1,082,260.76 × 440,102.28
  4. Step 4: Simplify right side
    784,311.42x = 476,305,428,030.53
  5. Step 5: Solve for x
    x = 476,305,428,030.53/784,311.42
  6. Step 6: Final answer
    x = 607,291.21

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.