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Finding the Fourth Proportional to 577,407.45, 796,752.72 and 319,249.47

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Solution

The fourth proportional to 577,407.45, 796,752.72 and 319,249.47 is: 440,525.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,407.45 : 796,752.72 = 319,249.47 : x
  2. Step 2: Convert to fraction form
    577,407.45/796,752.72 = 319,249.47/x
  3. Step 3: Cross multiply
    577,407.45x = 796,752.72 × 319,249.47
  4. Step 4: Simplify right side
    577,407.45x = 254,362,883,581.06
  5. Step 5: Solve for x
    x = 254,362,883,581.06/577,407.45
  6. Step 6: Final answer
    x = 440,525.81

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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.