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Finding the Fourth Proportional to 577,357.16, 796,738.76 and 319,227.55

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Solution

The fourth proportional to 577,357.16, 796,738.76 and 319,227.55 is: 440,526.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,357.16 : 796,738.76 = 319,227.55 : x
  2. Step 2: Convert to fraction form
    577,357.16/796,738.76 = 319,227.55/x
  3. Step 3: Cross multiply
    577,357.16x = 796,738.76 × 319,227.55
  4. Step 4: Simplify right side
    577,357.16x = 254,340,962,344.84
  5. Step 5: Solve for x
    x = 254,340,962,344.84/577,357.16
  6. Step 6: Final answer
    x = 440,526.21

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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.