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Finding the Fourth Proportional to 647,293.65, 970,939.08 and 173,979.01

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Solution

The fourth proportional to 647,293.65, 970,939.08 and 173,979.01 is: 260,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,293.65 : 970,939.08 = 173,979.01 : x
  2. Step 2: Convert to fraction form
    647,293.65/970,939.08 = 173,979.01/x
  3. Step 3: Cross multiply
    647,293.65x = 970,939.08 × 173,979.01
  4. Step 4: Simplify right side
    647,293.65x = 168,923,019,908.71
  5. Step 5: Solve for x
    x = 168,923,019,908.71/647,293.65
  6. Step 6: Final answer
    x = 260,968.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.