Home / 615,578.16-849,512.26-386,145.22

Finding the Fourth Proportional to 615,578.16, 849,512.26 and 386,145.22

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Solution

The fourth proportional to 615,578.16, 849,512.26 and 386,145.22 is: 532,889.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,578.16 : 849,512.26 = 386,145.22 : x
  2. Step 2: Convert to fraction form
    615,578.16/849,512.26 = 386,145.22/x
  3. Step 3: Cross multiply
    615,578.16x = 849,512.26 × 386,145.22
  4. Step 4: Simplify right side
    615,578.16x = 328,035,098,530.40
  5. Step 5: Solve for x
    x = 328,035,098,530.40/615,578.16
  6. Step 6: Final answer
    x = 532,889.44

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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.