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Finding the Fourth Proportional to 615,478.83, 849,502.51 and 360,912.03

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Solution

The fourth proportional to 615,478.83, 849,502.51 and 360,912.03 is: 498,141.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,478.83 : 849,502.51 = 360,912.03 : x
  2. Step 2: Convert to fraction form
    615,478.83/849,502.51 = 360,912.03/x
  3. Step 3: Cross multiply
    615,478.83x = 849,502.51 × 360,912.03
  4. Step 4: Simplify right side
    615,478.83x = 306,595,676,595.67
  5. Step 5: Solve for x
    x = 306,595,676,595.67/615,478.83
  6. Step 6: Final answer
    x = 498,141.71

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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.