Home / 1,457,465.89-2,011,305.99-812,869.51

Finding the Fourth Proportional to 1,457,465.89, 2,011,305.99 and 812,869.51

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Solution

The fourth proportional to 1,457,465.89, 2,011,305.99 and 812,869.51 is: 1,121,761.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,465.89 : 2,011,305.99 = 812,869.51 : x
  2. Step 2: Convert to fraction form
    1,457,465.89/2,011,305.99 = 812,869.51/x
  3. Step 3: Cross multiply
    1,457,465.89x = 2,011,305.99 × 812,869.51
  4. Step 4: Simplify right side
    1,457,465.89x = 1,634,929,314,551.37
  5. Step 5: Solve for x
    x = 1,634,929,314,551.37/1,457,465.89
  6. Step 6: Final answer
    x = 1,121,761.63

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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.