Home / 1,228,858.69-1,695,991-745,345.80

Finding the Fourth Proportional to 1,228,858.69, 1,695,991 and 745,345.80

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Solution

The fourth proportional to 1,228,858.69, 1,695,991 and 745,345.80 is: 1,028,677.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,858.69 : 1,695,991 = 745,345.80 : x
  2. Step 2: Convert to fraction form
    1,228,858.69/1,695,991 = 745,345.80/x
  3. Step 3: Cross multiply
    1,228,858.69x = 1,695,991 × 745,345.80
  4. Step 4: Simplify right side
    1,228,858.69x = 1,264,099,768,687.80
  5. Step 5: Solve for x
    x = 1,264,099,768,687.80/1,228,858.69
  6. Step 6: Final answer
    x = 1,028,677.89

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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.