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Finding the Fourth Proportional to 630,181.33, 869,494.65 and 372,064.30

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Solution

The fourth proportional to 630,181.33, 869,494.65 and 372,064.30 is: 513,356.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,181.33 : 869,494.65 = 372,064.30 : x
  2. Step 2: Convert to fraction form
    630,181.33/869,494.65 = 372,064.30/x
  3. Step 3: Cross multiply
    630,181.33x = 869,494.65 × 372,064.30
  4. Step 4: Simplify right side
    630,181.33x = 323,507,918,306.00
  5. Step 5: Solve for x
    x = 323,507,918,306.00/630,181.33
  6. Step 6: Final answer
    x = 513,356.88

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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.