Home / 615,119.28-849,213.36-400,151.76

Finding the Fourth Proportional to 615,119.28, 849,213.36 and 400,151.76

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Solution

The fourth proportional to 615,119.28, 849,213.36 and 400,151.76 is: 552,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,119.28 : 849,213.36 = 400,151.76 : x
  2. Step 2: Convert to fraction form
    615,119.28/849,213.36 = 400,151.76/x
  3. Step 3: Cross multiply
    615,119.28x = 849,213.36 × 400,151.76
  4. Step 4: Simplify right side
    615,119.28x = 339,814,220,619.51
  5. Step 5: Solve for x
    x = 339,814,220,619.51/615,119.28
  6. Step 6: Final answer
    x = 552,436.30

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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.