Home / 1,208,998.41-1,668,417.75-665,122.52

Finding the Fourth Proportional to 1,208,998.41, 1,668,417.75 and 665,122.52

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Solution

The fourth proportional to 1,208,998.41, 1,668,417.75 and 665,122.52 is: 917,869.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,998.41 : 1,668,417.75 = 665,122.52 : x
  2. Step 2: Convert to fraction form
    1,208,998.41/1,668,417.75 = 665,122.52/x
  3. Step 3: Cross multiply
    1,208,998.41x = 1,668,417.75 × 665,122.52
  4. Step 4: Simplify right side
    1,208,998.41x = 1,109,702,222,463.77
  5. Step 5: Solve for x
    x = 1,109,702,222,463.77/1,208,998.41
  6. Step 6: Final answer
    x = 917,869.05

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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.