Home / 1,913,206.92-2,640,125.90-1,188,039.06

Finding the Fourth Proportional to 1,913,206.92, 2,640,125.90 and 1,188,039.06

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Solution

The fourth proportional to 1,913,206.92, 2,640,125.90 and 1,188,039.06 is: 1,639,432.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,206.92 : 2,640,125.90 = 1,188,039.06 : x
  2. Step 2: Convert to fraction form
    1,913,206.92/2,640,125.90 = 1,188,039.06/x
  3. Step 3: Cross multiply
    1,913,206.92x = 2,640,125.90 × 1,188,039.06
  4. Step 4: Simplify right side
    1,913,206.92x = 3,136,572,686,577.46
  5. Step 5: Solve for x
    x = 3,136,572,686,577.46/1,913,206.92
  6. Step 6: Final answer
    x = 1,639,432.02

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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.