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Finding the Fourth Proportional to 576,999.98, 796,369.98 and 380,421.28

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Solution

The fourth proportional to 576,999.98, 796,369.98 and 380,421.28 is: 525,053.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,999.98 : 796,369.98 = 380,421.28 : x
  2. Step 2: Convert to fraction form
    576,999.98/796,369.98 = 380,421.28/x
  3. Step 3: Cross multiply
    576,999.98x = 796,369.98 × 380,421.28
  4. Step 4: Simplify right side
    576,999.98x = 302,956,089,667.14
  5. Step 5: Solve for x
    x = 302,956,089,667.14/576,999.98
  6. Step 6: Final answer
    x = 525,053.90

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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.