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Finding the Fourth Proportional to 636,009.64, 877,709.46 and 349,537

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Solution

The fourth proportional to 636,009.64, 877,709.46 and 349,537 is: 482,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,009.64 : 877,709.46 = 349,537 : x
  2. Step 2: Convert to fraction form
    636,009.64/877,709.46 = 349,537/x
  3. Step 3: Cross multiply
    636,009.64x = 877,709.46 × 349,537
  4. Step 4: Simplify right side
    636,009.64x = 306,791,931,520.02
  5. Step 5: Solve for x
    x = 306,791,931,520.02/636,009.64
  6. Step 6: Final answer
    x = 482,369.94

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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.