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Finding the Fourth Proportional to 615,486.95, 849,513.71 and 360,920.15

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Solution

The fourth proportional to 615,486.95, 849,513.71 and 360,920.15 is: 498,152.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,486.95 : 849,513.71 = 360,920.15 : x
  2. Step 2: Convert to fraction form
    615,486.95/849,513.71 = 360,920.15/x
  3. Step 3: Cross multiply
    615,486.95x = 849,513.71 × 360,920.15
  4. Step 4: Simplify right side
    615,486.95x = 306,606,613,450.49
  5. Step 5: Solve for x
    x = 306,606,613,450.49/615,486.95
  6. Step 6: Final answer
    x = 498,152.91

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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.