Home / 1,110,669.40-1,667,753.70-638,277.40

Finding the Fourth Proportional to 1,110,669.40, 1,667,753.70 and 638,277.40

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Solution

The fourth proportional to 1,110,669.40, 1,667,753.70 and 638,277.40 is: 958,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,669.40 : 1,667,753.70 = 638,277.40 : x
  2. Step 2: Convert to fraction form
    1,110,669.40/1,667,753.70 = 638,277.40/x
  3. Step 3: Cross multiply
    1,110,669.40x = 1,667,753.70 × 638,277.40
  4. Step 4: Simplify right side
    1,110,669.40x = 1,064,489,495,476.38
  5. Step 5: Solve for x
    x = 1,064,489,495,476.38/1,110,669.40
  6. Step 6: Final answer
    x = 958,421.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.