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Finding the Fourth Proportional to 637,558.55, 879,830.71 and 351,077.93

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Solution

The fourth proportional to 637,558.55, 879,830.71 and 351,077.93 is: 484,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,558.55 : 879,830.71 = 351,077.93 : x
  2. Step 2: Convert to fraction form
    637,558.55/879,830.71 = 351,077.93/x
  3. Step 3: Cross multiply
    637,558.55x = 879,830.71 × 351,077.93
  4. Step 4: Simplify right side
    637,558.55x = 308,889,139,140.38
  5. Step 5: Solve for x
    x = 308,889,139,140.38/637,558.55
  6. Step 6: Final answer
    x = 484,487.49

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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.