Home / 630,414.49-869,936.54-358,548.52

Finding the Fourth Proportional to 630,414.49, 869,936.54 and 358,548.52

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Solution

The fourth proportional to 630,414.49, 869,936.54 and 358,548.52 is: 494,776.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,414.49 : 869,936.54 = 358,548.52 : x
  2. Step 2: Convert to fraction form
    630,414.49/869,936.54 = 358,548.52/x
  3. Step 3: Cross multiply
    630,414.49x = 869,936.54 × 358,548.52
  4. Step 4: Simplify right side
    630,414.49x = 311,914,459,807.29
  5. Step 5: Solve for x
    x = 311,914,459,807.29/630,414.49
  6. Step 6: Final answer
    x = 494,776.79

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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.