Home / 1,289,608.88-1,779,703.42-716,673.20

Finding the Fourth Proportional to 1,289,608.88, 1,779,703.42 and 716,673.20

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Solution

The fourth proportional to 1,289,608.88, 1,779,703.42 and 716,673.20 is: 989,033.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,608.88 : 1,779,703.42 = 716,673.20 : x
  2. Step 2: Convert to fraction form
    1,289,608.88/1,779,703.42 = 716,673.20/x
  3. Step 3: Cross multiply
    1,289,608.88x = 1,779,703.42 × 716,673.20
  4. Step 4: Simplify right side
    1,289,608.88x = 1,275,465,745,062.34
  5. Step 5: Solve for x
    x = 1,275,465,745,062.34/1,289,608.88
  6. Step 6: Final answer
    x = 989,033.00

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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.