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Finding the Fourth Proportional to 615,379.68, 848,049.27 and 442,993.53

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Solution

The fourth proportional to 615,379.68, 848,049.27 and 442,993.53 is: 610,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,379.68 : 848,049.27 = 442,993.53 : x
  2. Step 2: Convert to fraction form
    615,379.68/848,049.27 = 442,993.53/x
  3. Step 3: Cross multiply
    615,379.68x = 848,049.27 × 442,993.53
  4. Step 4: Simplify right side
    615,379.68x = 375,680,339,731.22
  5. Step 5: Solve for x
    x = 375,680,339,731.22/615,379.68
  6. Step 6: Final answer
    x = 610,485.45

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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.