Home / 1,501,447.28-2,071,999.13-813,120.21

Finding the Fourth Proportional to 1,501,447.28, 2,071,999.13 and 813,120.21

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Solution

The fourth proportional to 1,501,447.28, 2,071,999.13 and 813,120.21 is: 1,122,106.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501,447.28 : 2,071,999.13 = 813,120.21 : x
  2. Step 2: Convert to fraction form
    1,501,447.28/2,071,999.13 = 813,120.21/x
  3. Step 3: Cross multiply
    1,501,447.28x = 2,071,999.13 × 813,120.21
  4. Step 4: Simplify right side
    1,501,447.28x = 1,684,784,363,639.82
  5. Step 5: Solve for x
    x = 1,684,784,363,639.82/1,501,447.28
  6. Step 6: Final answer
    x = 1,122,106.91

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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.