Home / 1,218,528.74-1,681,622.21-674,664.51

Finding the Fourth Proportional to 1,218,528.74, 1,681,622.21 and 674,664.51

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Solution

The fourth proportional to 1,218,528.74, 1,681,622.21 and 674,664.51 is: 931,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,528.74 : 1,681,622.21 = 674,664.51 : x
  2. Step 2: Convert to fraction form
    1,218,528.74/1,681,622.21 = 674,664.51/x
  3. Step 3: Cross multiply
    1,218,528.74x = 1,681,622.21 × 674,664.51
  4. Step 4: Simplify right side
    1,218,528.74x = 1,134,530,827,247.53
  5. Step 5: Solve for x
    x = 1,134,530,827,247.53/1,218,528.74
  6. Step 6: Final answer
    x = 931,066.12

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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.