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Finding the Fourth Proportional to 577,349.77, 796,710.37 and 319,211.68

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Solution

The fourth proportional to 577,349.77, 796,710.37 and 319,211.68 is: 440,494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,349.77 : 796,710.37 = 319,211.68 : x
  2. Step 2: Convert to fraction form
    577,349.77/796,710.37 = 319,211.68/x
  3. Step 3: Cross multiply
    577,349.77x = 796,710.37 × 319,211.68
  4. Step 4: Simplify right side
    577,349.77x = 254,319,255,681.12
  5. Step 5: Solve for x
    x = 254,319,255,681.12/577,349.77
  6. Step 6: Final answer
    x = 440,494.25

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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.