Home / 615,665.48-849,632.15-386,232.44

Finding the Fourth Proportional to 615,665.48, 849,632.15 and 386,232.44

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Solution

The fourth proportional to 615,665.48, 849,632.15 and 386,232.44 is: 533,009.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,665.48 : 849,632.15 = 386,232.44 : x
  2. Step 2: Convert to fraction form
    615,665.48/849,632.15 = 386,232.44/x
  3. Step 3: Cross multiply
    615,665.48x = 849,632.15 × 386,232.44
  4. Step 4: Simplify right side
    615,665.48x = 328,155,495,114.37
  5. Step 5: Solve for x
    x = 328,155,495,114.37/615,665.48
  6. Step 6: Final answer
    x = 533,009.42

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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.