Home / 1,111,097.91-1,666,649.01-428,306.30

Finding the Fourth Proportional to 1,111,097.91, 1,666,649.01 and 428,306.30

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Solution

The fourth proportional to 1,111,097.91, 1,666,649.01 and 428,306.30 is: 642,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,097.91 : 1,666,649.01 = 428,306.30 : x
  2. Step 2: Convert to fraction form
    1,111,097.91/1,666,649.01 = 428,306.30/x
  3. Step 3: Cross multiply
    1,111,097.91x = 1,666,649.01 × 428,306.30
  4. Step 4: Simplify right side
    1,111,097.91x = 713,836,270,394.60
  5. Step 5: Solve for x
    x = 713,836,270,394.60/1,111,097.91
  6. Step 6: Final answer
    x = 642,460.27

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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.