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Finding the Fourth Proportional to 615,488.13, 849,515.33 and 360,921.33

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Solution

The fourth proportional to 615,488.13, 849,515.33 and 360,921.33 is: 498,154.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,488.13 : 849,515.33 = 360,921.33 : x
  2. Step 2: Convert to fraction form
    615,488.13/849,515.33 = 360,921.33/x
  3. Step 3: Cross multiply
    615,488.13x = 849,515.33 × 360,921.33
  4. Step 4: Simplify right side
    615,488.13x = 306,608,200,954.38
  5. Step 5: Solve for x
    x = 306,608,200,954.38/615,488.13
  6. Step 6: Final answer
    x = 498,154.53

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1.5x scale

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.