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Finding the Fourth Proportional to 636,156.99, 877,909.19 and 349,703.73

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Solution

The fourth proportional to 636,156.99, 877,909.19 and 349,703.73 is: 482,598.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,156.99 : 877,909.19 = 349,703.73 : x
  2. Step 2: Convert to fraction form
    636,156.99/877,909.19 = 349,703.73/x
  3. Step 3: Cross multiply
    636,156.99x = 877,909.19 × 349,703.73
  4. Step 4: Simplify right side
    636,156.99x = 307,008,116,595.76
  5. Step 5: Solve for x
    x = 307,008,116,595.76/636,156.99
  6. Step 6: Final answer
    x = 482,598.04

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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.