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Finding the Fourth Proportional to 577,121, 796,412.12 and 322,474.28

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Solution

The fourth proportional to 577,121, 796,412.12 and 322,474.28 is: 445,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,121 : 796,412.12 = 322,474.28 : x
  2. Step 2: Convert to fraction form
    577,121/796,412.12 = 322,474.28/x
  3. Step 3: Cross multiply
    577,121x = 796,412.12 × 322,474.28
  4. Step 4: Simplify right side
    577,121x = 256,822,424,980.27
  5. Step 5: Solve for x
    x = 256,822,424,980.27/577,121
  6. Step 6: Final answer
    x = 445,006.20

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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.