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Finding the Fourth Proportional to 615,480.57, 849,504.90 and 360,913.77

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Solution

The fourth proportional to 615,480.57, 849,504.90 and 360,913.77 is: 498,144.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,480.57 : 849,504.90 = 360,913.77 : x
  2. Step 2: Convert to fraction form
    615,480.57/849,504.90 = 360,913.77/x
  3. Step 3: Cross multiply
    615,480.57x = 849,504.90 × 360,913.77
  4. Step 4: Simplify right side
    615,480.57x = 306,598,012,164.14
  5. Step 5: Solve for x
    x = 306,598,012,164.14/615,480.57
  6. Step 6: Final answer
    x = 498,144.10

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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.