Home / 1,915,368.72-2,643,226.92-1,055,959.74

Finding the Fourth Proportional to 1,915,368.72, 2,643,226.92 and 1,055,959.74

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Solution

The fourth proportional to 1,915,368.72, 2,643,226.92 and 1,055,959.74 is: 1,457,234.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,368.72 : 2,643,226.92 = 1,055,959.74 : x
  2. Step 2: Convert to fraction form
    1,915,368.72/2,643,226.92 = 1,055,959.74/x
  3. Step 3: Cross multiply
    1,915,368.72x = 2,643,226.92 × 1,055,959.74
  4. Step 4: Simplify right side
    1,915,368.72x = 2,791,141,211,204.20
  5. Step 5: Solve for x
    x = 2,791,141,211,204.20/1,915,368.72
  6. Step 6: Final answer
    x = 1,457,234.41

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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.