Home / 1,143,913.90-1,578,548.33-627,654.94

Finding the Fourth Proportional to 1,143,913.90, 1,578,548.33 and 627,654.94

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Solution

The fourth proportional to 1,143,913.90, 1,578,548.33 and 627,654.94 is: 866,134.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,913.90 : 1,578,548.33 = 627,654.94 : x
  2. Step 2: Convert to fraction form
    1,143,913.90/1,578,548.33 = 627,654.94/x
  3. Step 3: Cross multiply
    1,143,913.90x = 1,578,548.33 × 627,654.94
  4. Step 4: Simplify right side
    1,143,913.90x = 990,783,657,353.25
  5. Step 5: Solve for x
    x = 990,783,657,353.25/1,143,913.90
  6. Step 6: Final answer
    x = 866,134.82

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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.