Home / 761,658.40-1,051,086.41-422,126.65

Finding the Fourth Proportional to 761,658.40, 1,051,086.41 and 422,126.65

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Solution

The fourth proportional to 761,658.40, 1,051,086.41 and 422,126.65 is: 582,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,658.40 : 1,051,086.41 = 422,126.65 : x
  2. Step 2: Convert to fraction form
    761,658.40/1,051,086.41 = 422,126.65/x
  3. Step 3: Cross multiply
    761,658.40x = 1,051,086.41 × 422,126.65
  4. Step 4: Simplify right side
    761,658.40x = 443,691,583,003.19
  5. Step 5: Solve for x
    x = 443,691,583,003.19/761,658.40
  6. Step 6: Final answer
    x = 582,533.56

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Double scale
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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.