Home / 1,838,139.40-2,754,098.70-1,206,728.20

Finding the Fourth Proportional to 1,838,139.40, 2,754,098.70 and 1,206,728.20

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Solution

The fourth proportional to 1,838,139.40, 2,754,098.70 and 1,206,728.20 is: 1,808,050.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,838,139.40 : 2,754,098.70 = 1,206,728.20 : x
  2. Step 2: Convert to fraction form
    1,838,139.40/2,754,098.70 = 1,206,728.20/x
  3. Step 3: Cross multiply
    1,838,139.40x = 2,754,098.70 × 1,206,728.20
  4. Step 4: Simplify right side
    1,838,139.40x = 3,323,448,566,873.34
  5. Step 5: Solve for x
    x = 3,323,448,566,873.34/1,838,139.40
  6. Step 6: Final answer
    x = 1,808,050.34

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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.