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Finding the Fourth Proportional to 577,281.66, 796,625.16 and 319,142.18

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Solution

The fourth proportional to 577,281.66, 796,625.16 and 319,142.18 is: 440,403.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,281.66 : 796,625.16 = 319,142.18 : x
  2. Step 2: Convert to fraction form
    577,281.66/796,625.16 = 319,142.18/x
  3. Step 3: Cross multiply
    577,281.66x = 796,625.16 × 319,142.18
  4. Step 4: Simplify right side
    577,281.66x = 254,236,688,611.08
  5. Step 5: Solve for x
    x = 254,236,688,611.08/577,281.66
  6. Step 6: Final answer
    x = 440,403.20

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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.