Home / 1,289,644.83-1,779,568.56-745,698.31

Finding the Fourth Proportional to 1,289,644.83, 1,779,568.56 and 745,698.31

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Solution

The fourth proportional to 1,289,644.83, 1,779,568.56 and 745,698.31 is: 1,028,981.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,644.83 : 1,779,568.56 = 745,698.31 : x
  2. Step 2: Convert to fraction form
    1,289,644.83/1,779,568.56 = 745,698.31/x
  3. Step 3: Cross multiply
    1,289,644.83x = 1,779,568.56 × 745,698.31
  4. Step 4: Simplify right side
    1,289,644.83x = 1,327,021,263,272.21
  5. Step 5: Solve for x
    x = 1,327,021,263,272.21/1,289,644.83
  6. Step 6: Final answer
    x = 1,028,981.96

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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.