Home / 1,289,604.16-1,779,696.88-716,668.48

Finding the Fourth Proportional to 1,289,604.16, 1,779,696.88 and 716,668.48

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Solution

The fourth proportional to 1,289,604.16, 1,779,696.88 and 716,668.48 is: 989,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,604.16 : 1,779,696.88 = 716,668.48 : x
  2. Step 2: Convert to fraction form
    1,289,604.16/1,779,696.88 = 716,668.48/x
  3. Step 3: Cross multiply
    1,289,604.16x = 1,779,696.88 × 716,668.48
  4. Step 4: Simplify right side
    1,289,604.16x = 1,275,452,657,850.34
  5. Step 5: Solve for x
    x = 1,275,452,657,850.34/1,289,604.16
  6. Step 6: Final answer
    x = 989,026.48

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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.