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Finding the Fourth Proportional to 560,557.86, 773,224.14 and 399,464.65

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Solution

The fourth proportional to 560,557.86, 773,224.14 and 399,464.65 is: 551,014.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,557.86 : 773,224.14 = 399,464.65 : x
  2. Step 2: Convert to fraction form
    560,557.86/773,224.14 = 399,464.65/x
  3. Step 3: Cross multiply
    560,557.86x = 773,224.14 × 399,464.65
  4. Step 4: Simplify right side
    560,557.86x = 308,875,710,456.65
  5. Step 5: Solve for x
    x = 308,875,710,456.65/560,557.86
  6. Step 6: Final answer
    x = 551,014.86

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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.