Home / 761,679.86-1,051,119.06-422,148.38

Finding the Fourth Proportional to 761,679.86, 1,051,119.06 and 422,148.38

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Solution

The fourth proportional to 761,679.86, 1,051,119.06 and 422,148.38 is: 582,565.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,679.86 : 1,051,119.06 = 422,148.38 : x
  2. Step 2: Convert to fraction form
    761,679.86/1,051,119.06 = 422,148.38/x
  3. Step 3: Cross multiply
    761,679.86x = 1,051,119.06 × 422,148.38
  4. Step 4: Simplify right side
    761,679.86x = 443,728,208,366.12
  5. Step 5: Solve for x
    x = 443,728,208,366.12/761,679.86
  6. Step 6: Final answer
    x = 582,565.24

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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.