Home / 761,677.86-1,051,116.30-422,146.38

Finding the Fourth Proportional to 761,677.86, 1,051,116.30 and 422,146.38

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Solution

The fourth proportional to 761,677.86, 1,051,116.30 and 422,146.38 is: 582,562.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,677.86 : 1,051,116.30 = 422,146.38 : x
  2. Step 2: Convert to fraction form
    761,677.86/1,051,116.30 = 422,146.38/x
  3. Step 3: Cross multiply
    761,677.86x = 1,051,116.30 × 422,146.38
  4. Step 4: Simplify right side
    761,677.86x = 443,724,941,003.99
  5. Step 5: Solve for x
    x = 443,724,941,003.99/761,677.86
  6. Step 6: Final answer
    x = 582,562.48

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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.