Home / 1,985,143.84-2,976,409.02-1,309,164.01

Finding the Fourth Proportional to 1,985,143.84, 2,976,409.02 and 1,309,164.01

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Solution

The fourth proportional to 1,985,143.84, 2,976,409.02 and 1,309,164.01 is: 1,962,884.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,143.84 : 2,976,409.02 = 1,309,164.01 : x
  2. Step 2: Convert to fraction form
    1,985,143.84/2,976,409.02 = 1,309,164.01/x
  3. Step 3: Cross multiply
    1,985,143.84x = 2,976,409.02 × 1,309,164.01
  4. Step 4: Simplify right side
    1,985,143.84x = 3,896,607,558,544.87
  5. Step 5: Solve for x
    x = 3,896,607,558,544.87/1,985,143.84
  6. Step 6: Final answer
    x = 1,962,884.24

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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.