Home / 1,676,638.72-2,313,785.60-912,716.16

Finding the Fourth Proportional to 1,676,638.72, 2,313,785.60 and 912,716.16

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Solution

The fourth proportional to 1,676,638.72, 2,313,785.60 and 912,716.16 is: 1,259,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676,638.72 : 2,313,785.60 = 912,716.16 : x
  2. Step 2: Convert to fraction form
    1,676,638.72/2,313,785.60 = 912,716.16/x
  3. Step 3: Cross multiply
    1,676,638.72x = 2,313,785.60 × 912,716.16
  4. Step 4: Simplify right side
    1,676,638.72x = 2,111,829,507,895.30
  5. Step 5: Solve for x
    x = 2,111,829,507,895.30/1,676,638.72
  6. Step 6: Final answer
    x = 1,259,561.46

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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.