Home / 1,224,004.87-1,689,104.31-680,130.76

Finding the Fourth Proportional to 1,224,004.87, 1,689,104.31 and 680,130.76

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Solution

The fourth proportional to 1,224,004.87, 1,689,104.31 and 680,130.76 is: 938,568.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,004.87 : 1,689,104.31 = 680,130.76 : x
  2. Step 2: Convert to fraction form
    1,224,004.87/1,689,104.31 = 680,130.76/x
  3. Step 3: Cross multiply
    1,224,004.87x = 1,689,104.31 × 680,130.76
  4. Step 4: Simplify right side
    1,224,004.87x = 1,148,811,798,079.58
  5. Step 5: Solve for x
    x = 1,148,811,798,079.58/1,224,004.87
  6. Step 6: Final answer
    x = 938,568.00

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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.