Home / 1,289,645.33-1,779,569.25-745,698.81

Finding the Fourth Proportional to 1,289,645.33, 1,779,569.25 and 745,698.81

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Solution

The fourth proportional to 1,289,645.33, 1,779,569.25 and 745,698.81 is: 1,028,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,645.33 : 1,779,569.25 = 745,698.81 : x
  2. Step 2: Convert to fraction form
    1,289,645.33/1,779,569.25 = 745,698.81/x
  3. Step 3: Cross multiply
    1,289,645.33x = 1,779,569.25 × 745,698.81
  4. Step 4: Simplify right side
    1,289,645.33x = 1,327,022,672,037.59
  5. Step 5: Solve for x
    x = 1,327,022,672,037.59/1,289,645.33
  6. Step 6: Final answer
    x = 1,028,982.65

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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.