Home / 1,208,998.02-1,668,417.26-665,122.13

Finding the Fourth Proportional to 1,208,998.02, 1,668,417.26 and 665,122.13

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Solution

The fourth proportional to 1,208,998.02, 1,668,417.26 and 665,122.13 is: 917,868.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,998.02 : 1,668,417.26 = 665,122.13 : x
  2. Step 2: Convert to fraction form
    1,208,998.02/1,668,417.26 = 665,122.13/x
  3. Step 3: Cross multiply
    1,208,998.02x = 1,668,417.26 × 665,122.13
  4. Step 4: Simplify right side
    1,208,998.02x = 1,109,701,230,032.27
  5. Step 5: Solve for x
    x = 1,109,701,230,032.27/1,208,998.02
  6. Step 6: Final answer
    x = 917,868.53

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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.