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Finding the Fourth Proportional to 577,312.16, 796,696.08 and 319,185.36

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Solution

The fourth proportional to 577,312.16, 796,696.08 and 319,185.36 is: 440,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,312.16 : 796,696.08 = 319,185.36 : x
  2. Step 2: Convert to fraction form
    577,312.16/796,696.08 = 319,185.36/x
  3. Step 3: Cross multiply
    577,312.16x = 796,696.08 × 319,185.36
  4. Step 4: Simplify right side
    577,312.16x = 254,293,725,105.39
  5. Step 5: Solve for x
    x = 254,293,725,105.39/577,312.16
  6. Step 6: Final answer
    x = 440,478.73

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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.