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Finding the Fourth Proportional to 630,312.48, 869,837.46 and 343,838.52

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Solution

The fourth proportional to 630,312.48, 869,837.46 and 343,838.52 is: 474,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,312.48 : 869,837.46 = 343,838.52 : x
  2. Step 2: Convert to fraction form
    630,312.48/869,837.46 = 343,838.52/x
  3. Step 3: Cross multiply
    630,312.48x = 869,837.46 × 343,838.52
  4. Step 4: Simplify right side
    630,312.48x = 299,083,624,886.96
  5. Step 5: Solve for x
    x = 299,083,624,886.96/630,312.48
  6. Step 6: Final answer
    x = 474,500.56

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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.