Home / 1,289,809.96-1,779,924.91-716,837.83

Finding the Fourth Proportional to 1,289,809.96, 1,779,924.91 and 716,837.83

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Solution

The fourth proportional to 1,289,809.96, 1,779,924.91 and 716,837.83 is: 989,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,809.96 : 1,779,924.91 = 716,837.83 : x
  2. Step 2: Convert to fraction form
    1,289,809.96/1,779,924.91 = 716,837.83/x
  3. Step 3: Cross multiply
    1,289,809.96x = 1,779,924.91 × 716,837.83
  4. Step 4: Simplify right side
    1,289,809.96x = 1,275,917,510,047.35
  5. Step 5: Solve for x
    x = 1,275,917,510,047.35/1,289,809.96
  6. Step 6: Final answer
    x = 989,229.07

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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.