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Finding the Fourth Proportional to 556,776.69, 768,353.87 and 302,127.87

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Solution

The fourth proportional to 556,776.69, 768,353.87 and 302,127.87 is: 416,937.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,776.69 : 768,353.87 = 302,127.87 : x
  2. Step 2: Convert to fraction form
    556,776.69/768,353.87 = 302,127.87/x
  3. Step 3: Cross multiply
    556,776.69x = 768,353.87 × 302,127.87
  4. Step 4: Simplify right side
    556,776.69x = 232,141,118,149.36
  5. Step 5: Solve for x
    x = 232,141,118,149.36/556,776.69
  6. Step 6: Final answer
    x = 416,937.57

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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.