Home / 1,898,720.40-2,620,132.72-1,039,114.40

Finding the Fourth Proportional to 1,898,720.40, 2,620,132.72 and 1,039,114.40

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Solution

The fourth proportional to 1,898,720.40, 2,620,132.72 and 1,039,114.40 is: 1,433,922.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,720.40 : 2,620,132.72 = 1,039,114.40 : x
  2. Step 2: Convert to fraction form
    1,898,720.40/2,620,132.72 = 1,039,114.40/x
  3. Step 3: Cross multiply
    1,898,720.40x = 2,620,132.72 × 1,039,114.40
  4. Step 4: Simplify right side
    1,898,720.40x = 2,722,617,639,263.17
  5. Step 5: Solve for x
    x = 2,722,617,639,263.17/1,898,720.40
  6. Step 6: Final answer
    x = 1,433,922.36

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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.