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Finding the Fourth Proportional to 445,939.48, 615,907.76 and 293,658.67

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Solution

The fourth proportional to 445,939.48, 615,907.76 and 293,658.67 is: 405,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,939.48 : 615,907.76 = 293,658.67 : x
  2. Step 2: Convert to fraction form
    445,939.48/615,907.76 = 293,658.67/x
  3. Step 3: Cross multiply
    445,939.48x = 615,907.76 × 293,658.67
  4. Step 4: Simplify right side
    445,939.48x = 180,866,653,644.28
  5. Step 5: Solve for x
    x = 180,866,653,644.28/445,939.48
  6. Step 6: Final answer
    x = 405,585.65

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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.