Home / 1,208,710.09-1,667,985.10-664,845.85

Finding the Fourth Proportional to 1,208,710.09, 1,667,985.10 and 664,845.85

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Solution

The fourth proportional to 1,208,710.09, 1,667,985.10 and 664,845.85 is: 917,468.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,710.09 : 1,667,985.10 = 664,845.85 : x
  2. Step 2: Convert to fraction form
    1,208,710.09/1,667,985.10 = 664,845.85/x
  3. Step 3: Cross multiply
    1,208,710.09x = 1,667,985.10 × 664,845.85
  4. Step 4: Simplify right side
    1,208,710.09x = 1,108,952,971,596.84
  5. Step 5: Solve for x
    x = 1,108,952,971,596.84/1,208,710.09
  6. Step 6: Final answer
    x = 917,468.12

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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.