Home / 1,457,544.78-2,011,415.37-813,006.72

Finding the Fourth Proportional to 1,457,544.78, 2,011,415.37 and 813,006.72

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Solution

The fourth proportional to 1,457,544.78, 2,011,415.37 and 813,006.72 is: 1,121,951.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,544.78 : 2,011,415.37 = 813,006.72 : x
  2. Step 2: Convert to fraction form
    1,457,544.78/2,011,415.37 = 813,006.72/x
  3. Step 3: Cross multiply
    1,457,544.78x = 2,011,415.37 × 813,006.72
  4. Step 4: Simplify right side
    1,457,544.78x = 1,635,294,212,521.29
  5. Step 5: Solve for x
    x = 1,635,294,212,521.29/1,457,544.78
  6. Step 6: Final answer
    x = 1,121,951.27

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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.