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Finding the Fourth Proportional to 556,771.16, 768,346.31 and 302,122.35

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Solution

The fourth proportional to 556,771.16, 768,346.31 and 302,122.35 is: 416,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,771.16 : 768,346.31 = 302,122.35 : x
  2. Step 2: Convert to fraction form
    556,771.16/768,346.31 = 302,122.35/x
  3. Step 3: Cross multiply
    556,771.16x = 768,346.31 × 302,122.35
  4. Step 4: Simplify right side
    556,771.16x = 232,134,591,280.42
  5. Step 5: Solve for x
    x = 232,134,591,280.42/556,771.16
  6. Step 6: Final answer
    x = 416,929.99

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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.