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Finding the Fourth Proportional to 556,949.96, 768,591.72 and 302,301.20

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Solution

The fourth proportional to 556,949.96, 768,591.72 and 302,301.20 is: 417,176.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,949.96 : 768,591.72 = 302,301.20 : x
  2. Step 2: Convert to fraction form
    556,949.96/768,591.72 = 302,301.20/x
  3. Step 3: Cross multiply
    556,949.96x = 768,591.72 × 302,301.20
  4. Step 4: Simplify right side
    556,949.96x = 232,346,199,266.06
  5. Step 5: Solve for x
    x = 232,346,199,266.06/556,949.96
  6. Step 6: Final answer
    x = 417,176.08

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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.