Home / 1,898,583.47-2,620,045.17-1,039,143.72

Finding the Fourth Proportional to 1,898,583.47, 2,620,045.17 and 1,039,143.72

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Solution

The fourth proportional to 1,898,583.47, 2,620,045.17 and 1,039,143.72 is: 1,434,018.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,583.47 : 2,620,045.17 = 1,039,143.72 : x
  2. Step 2: Convert to fraction form
    1,898,583.47/2,620,045.17 = 1,039,143.72/x
  3. Step 3: Cross multiply
    1,898,583.47x = 2,620,045.17 × 1,039,143.72
  4. Step 4: Simplify right side
    1,898,583.47x = 2,722,603,484,521.83
  5. Step 5: Solve for x
    x = 2,722,603,484,521.83/1,898,583.47
  6. Step 6: Final answer
    x = 1,434,018.33

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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.