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Finding the Fourth Proportional to 556,770.68, 768,345.58 and 302,121.87

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Solution

The fourth proportional to 556,770.68, 768,345.58 and 302,121.87 is: 416,929.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,770.68 : 768,345.58 = 302,121.87 : x
  2. Step 2: Convert to fraction form
    556,770.68/768,345.58 = 302,121.87/x
  3. Step 3: Cross multiply
    556,770.68x = 768,345.58 × 302,121.87
  4. Step 4: Simplify right side
    556,770.68x = 232,134,003,435.84
  5. Step 5: Solve for x
    x = 232,134,003,435.84/556,770.68
  6. Step 6: Final answer
    x = 416,929.29

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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.