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Finding the Fourth Proportional to 456,783.72, 630,347.85 and 252,843

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Solution

The fourth proportional to 456,783.72, 630,347.85 and 252,843 is: 348,915.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,783.72 : 630,347.85 = 252,843 : x
  2. Step 2: Convert to fraction form
    456,783.72/630,347.85 = 252,843/x
  3. Step 3: Cross multiply
    456,783.72x = 630,347.85 × 252,843
  4. Step 4: Simplify right side
    456,783.72x = 159,379,041,437.55
  5. Step 5: Solve for x
    x = 159,379,041,437.55/456,783.72
  6. Step 6: Final answer
    x = 348,915.77

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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.