Home / 695,578.64-959,934.48-389,637.20

Finding the Fourth Proportional to 695,578.64, 959,934.48 and 389,637.20

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Solution

The fourth proportional to 695,578.64, 959,934.48 and 389,637.20 is: 537,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,578.64 : 959,934.48 = 389,637.20 : x
  2. Step 2: Convert to fraction form
    695,578.64/959,934.48 = 389,637.20/x
  3. Step 3: Cross multiply
    695,578.64x = 959,934.48 × 389,637.20
  4. Step 4: Simplify right side
    695,578.64x = 374,026,182,970.66
  5. Step 5: Solve for x
    x = 374,026,182,970.66/695,578.64
  6. Step 6: Final answer
    x = 537,719.48

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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.