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Finding the Fourth Proportional to 556,776.68, 768,353.84 and 302,127.88

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Solution

The fourth proportional to 556,776.68, 768,353.84 and 302,127.88 is: 416,937.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,776.68 : 768,353.84 = 302,127.88 : x
  2. Step 2: Convert to fraction form
    556,776.68/768,353.84 = 302,127.88/x
  3. Step 3: Cross multiply
    556,776.68x = 768,353.84 × 302,127.88
  4. Step 4: Simplify right side
    556,776.68x = 232,141,116,769.06
  5. Step 5: Solve for x
    x = 232,141,116,769.06/556,776.68
  6. Step 6: Final answer
    x = 416,937.57

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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.