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Finding the Fourth Proportional to 556,908.68, 768,534.72 and 302,259.89

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Solution

The fourth proportional to 556,908.68, 768,534.72 and 302,259.89 is: 417,119.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,908.68 : 768,534.72 = 302,259.89 : x
  2. Step 2: Convert to fraction form
    556,908.68/768,534.72 = 302,259.89/x
  3. Step 3: Cross multiply
    556,908.68x = 768,534.72 × 302,259.89
  4. Step 4: Simplify right side
    556,908.68x = 232,297,219,928.38
  5. Step 5: Solve for x
    x = 232,297,219,928.38/556,908.68
  6. Step 6: Final answer
    x = 417,119.05

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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.