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Finding the Fourth Proportional to 630,394.33, 869,940.04 and 358,462.24

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Solution

The fourth proportional to 630,394.33, 869,940.04 and 358,462.24 is: 494,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,394.33 : 869,940.04 = 358,462.24 : x
  2. Step 2: Convert to fraction form
    630,394.33/869,940.04 = 358,462.24/x
  3. Step 3: Cross multiply
    630,394.33x = 869,940.04 × 358,462.24
  4. Step 4: Simplify right side
    630,394.33x = 311,840,655,404.09
  5. Step 5: Solve for x
    x = 311,840,655,404.09/630,394.33
  6. Step 6: Final answer
    x = 494,675.54

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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.