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Finding the Fourth Proportional to 633,784.95, 874,537.64 and 361,835.55

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Solution

The fourth proportional to 633,784.95, 874,537.64 and 361,835.55 is: 499,284.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,784.95 : 874,537.64 = 361,835.55 : x
  2. Step 2: Convert to fraction form
    633,784.95/874,537.64 = 361,835.55/x
  3. Step 3: Cross multiply
    633,784.95x = 874,537.64 × 361,835.55
  4. Step 4: Simplify right side
    633,784.95x = 316,438,806,155.92
  5. Step 5: Solve for x
    x = 316,438,806,155.92/633,784.95
  6. Step 6: Final answer
    x = 499,284.19

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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.