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Finding the Fourth Proportional to 576,981.63, 796,237.07 and 315,342.20

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Solution

The fourth proportional to 576,981.63, 796,237.07 and 315,342.20 is: 435,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,981.63 : 796,237.07 = 315,342.20 : x
  2. Step 2: Convert to fraction form
    576,981.63/796,237.07 = 315,342.20/x
  3. Step 3: Cross multiply
    576,981.63x = 796,237.07 × 315,342.20
  4. Step 4: Simplify right side
    576,981.63x = 251,087,151,773.68
  5. Step 5: Solve for x
    x = 251,087,151,773.68/576,981.63
  6. Step 6: Final answer
    x = 435,173.56

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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.