Home / 772,066.88-1,065,398.52-427,899.44

Finding the Fourth Proportional to 772,066.88, 1,065,398.52 and 427,899.44

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Solution

The fourth proportional to 772,066.88, 1,065,398.52 and 427,899.44 is: 590,471.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,066.88 : 1,065,398.52 = 427,899.44 : x
  2. Step 2: Convert to fraction form
    772,066.88/1,065,398.52 = 427,899.44/x
  3. Step 3: Cross multiply
    772,066.88x = 1,065,398.52 × 427,899.44
  4. Step 4: Simplify right side
    772,066.88x = 455,883,430,084.83
  5. Step 5: Solve for x
    x = 455,883,430,084.83/772,066.88
  6. Step 6: Final answer
    x = 590,471.42

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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.