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Finding the Fourth Proportional to 564,483.76, 778,887.09 and 319,467.37

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Solution

The fourth proportional to 564,483.76, 778,887.09 and 319,467.37 is: 440,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,483.76 : 778,887.09 = 319,467.37 : x
  2. Step 2: Convert to fraction form
    564,483.76/778,887.09 = 319,467.37/x
  3. Step 3: Cross multiply
    564,483.76x = 778,887.09 × 319,467.37
  4. Step 4: Simplify right side
    564,483.76x = 248,829,010,169.25
  5. Step 5: Solve for x
    x = 248,829,010,169.25/564,483.76
  6. Step 6: Final answer
    x = 440,808.09

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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.