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Finding the Fourth Proportional to 556,769.66, 768,344.23 and 302,120.84

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Solution

The fourth proportional to 556,769.66, 768,344.23 and 302,120.84 is: 416,927.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,769.66 : 768,344.23 = 302,120.84 : x
  2. Step 2: Convert to fraction form
    556,769.66/768,344.23 = 302,120.84/x
  3. Step 3: Cross multiply
    556,769.66x = 768,344.23 × 302,120.84
  4. Step 4: Simplify right side
    556,769.66x = 232,132,806,475.27
  5. Step 5: Solve for x
    x = 232,132,806,475.27/556,769.66
  6. Step 6: Final answer
    x = 416,927.91

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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.