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Finding the Fourth Proportional to 556,769.68, 768,344.20 and 302,120.87

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Solution

The fourth proportional to 556,769.68, 768,344.20 and 302,120.87 is: 416,927.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,769.68 : 768,344.20 = 302,120.87 : x
  2. Step 2: Convert to fraction form
    556,769.68/768,344.20 = 302,120.87/x
  3. Step 3: Cross multiply
    556,769.68x = 768,344.20 × 302,120.87
  4. Step 4: Simplify right side
    556,769.68x = 232,132,813,566.43
  5. Step 5: Solve for x
    x = 232,132,813,566.43/556,769.68
  6. Step 6: Final answer
    x = 416,927.90

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1.5x scale

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.