Home / 1,563,635.88-2,156,705.12-1,434,989.78

Finding the Fourth Proportional to 1,563,635.88, 2,156,705.12 and 1,434,989.78

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Solution

The fourth proportional to 1,563,635.88, 2,156,705.12 and 1,434,989.78 is: 1,979,265.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563,635.88 : 2,156,705.12 = 1,434,989.78 : x
  2. Step 2: Convert to fraction form
    1,563,635.88/2,156,705.12 = 1,434,989.78/x
  3. Step 3: Cross multiply
    1,563,635.88x = 2,156,705.12 × 1,434,989.78
  4. Step 4: Simplify right side
    1,563,635.88x = 3,094,849,803,869.39
  5. Step 5: Solve for x
    x = 3,094,849,803,869.39/1,563,635.88
  6. Step 6: Final answer
    x = 1,979,265.03

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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.