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Finding the Fourth Proportional to 615,485.39, 849,511.53 and 360,918.59

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Solution

The fourth proportional to 615,485.39, 849,511.53 and 360,918.59 is: 498,150.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,485.39 : 849,511.53 = 360,918.59 : x
  2. Step 2: Convert to fraction form
    615,485.39/849,511.53 = 360,918.59/x
  3. Step 3: Cross multiply
    615,485.39x = 849,511.53 × 360,918.59
  4. Step 4: Simplify right side
    615,485.39x = 306,604,499,348.79
  5. Step 5: Solve for x
    x = 306,604,499,348.79/615,485.39
  6. Step 6: Final answer
    x = 498,150.74

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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.