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Finding the Fourth Proportional to 556,964.80, 768,615.28 and 302,315.92

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Solution

The fourth proportional to 556,964.80, 768,615.28 and 302,315.92 is: 417,198.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,964.80 : 768,615.28 = 302,315.92 : x
  2. Step 2: Convert to fraction form
    556,964.80/768,615.28 = 302,315.92/x
  3. Step 3: Cross multiply
    556,964.80x = 768,615.28 × 302,315.92
  4. Step 4: Simplify right side
    556,964.80x = 232,364,635,499.26
  5. Step 5: Solve for x
    x = 232,364,635,499.26/556,964.80
  6. Step 6: Final answer
    x = 417,198.06

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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.