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Finding the Fourth Proportional to 630,346.94, 869,877.56 and 343,866.94

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Solution

The fourth proportional to 630,346.94, 869,877.56 and 343,866.94 is: 474,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,346.94 : 869,877.56 = 343,866.94 : x
  2. Step 2: Convert to fraction form
    630,346.94/869,877.56 = 343,866.94/x
  3. Step 3: Cross multiply
    630,346.94x = 869,877.56 × 343,866.94
  4. Step 4: Simplify right side
    630,346.94x = 299,122,134,731.87
  5. Step 5: Solve for x
    x = 299,122,134,731.87/630,346.94
  6. Step 6: Final answer
    x = 474,535.71

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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.