Home / 1,439,364.80-2,158,063.05-681,569.30

Finding the Fourth Proportional to 1,439,364.80, 2,158,063.05 and 681,569.30

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Solution

The fourth proportional to 1,439,364.80, 2,158,063.05 and 681,569.30 is: 1,021,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,364.80 : 2,158,063.05 = 681,569.30 : x
  2. Step 2: Convert to fraction form
    1,439,364.80/2,158,063.05 = 681,569.30/x
  3. Step 3: Cross multiply
    1,439,364.80x = 2,158,063.05 × 681,569.30
  4. Step 4: Simplify right side
    1,439,364.80x = 1,470,869,522,344.37
  5. Step 5: Solve for x
    x = 1,470,869,522,344.37/1,439,364.80
  6. Step 6: Final answer
    x = 1,021,887.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.