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Finding the Fourth Proportional to 556,898.40, 768,522.06 and 302,249.88

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Solution

The fourth proportional to 556,898.40, 768,522.06 and 302,249.88 is: 417,106.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,898.40 : 768,522.06 = 302,249.88 : x
  2. Step 2: Convert to fraction form
    556,898.40/768,522.06 = 302,249.88/x
  3. Step 3: Cross multiply
    556,898.40x = 768,522.06 × 302,249.88
  4. Step 4: Simplify right side
    556,898.40x = 232,285,700,412.35
  5. Step 5: Solve for x
    x = 232,285,700,412.35/556,898.40
  6. Step 6: Final answer
    x = 417,106.07

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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.