Home / 771,146.01-1,064,194.65-422,317.08

Finding the Fourth Proportional to 771,146.01, 1,064,194.65 and 422,317.08

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Solution

The fourth proportional to 771,146.01, 1,064,194.65 and 422,317.08 is: 582,804.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,146.01 : 1,064,194.65 = 422,317.08 : x
  2. Step 2: Convert to fraction form
    771,146.01/1,064,194.65 = 422,317.08/x
  3. Step 3: Cross multiply
    771,146.01x = 1,064,194.65 × 422,317.08
  4. Step 4: Simplify right side
    771,146.01x = 449,427,577,139.62
  5. Step 5: Solve for x
    x = 449,427,577,139.62/771,146.01
  6. Step 6: Final answer
    x = 582,804.78

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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.