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Finding the Fourth Proportional to 630,414.34, 869,936.33 and 358,548.37

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Solution

The fourth proportional to 630,414.34, 869,936.33 and 358,548.37 is: 494,776.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,414.34 : 869,936.33 = 358,548.37 : x
  2. Step 2: Convert to fraction form
    630,414.34/869,936.33 = 358,548.37/x
  3. Step 3: Cross multiply
    630,414.34x = 869,936.33 × 358,548.37
  4. Step 4: Simplify right side
    630,414.34x = 311,914,249,157.70
  5. Step 5: Solve for x
    x = 311,914,249,157.70/630,414.34
  6. Step 6: Final answer
    x = 494,776.58

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1.5x scale

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.