Home / 1,536,554.34-2,120,645.61-857,631.78

Finding the Fourth Proportional to 1,536,554.34, 2,120,645.61 and 857,631.78

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Solution

The fourth proportional to 1,536,554.34, 2,120,645.61 and 857,631.78 is: 1,183,643.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,554.34 : 2,120,645.61 = 857,631.78 : x
  2. Step 2: Convert to fraction form
    1,536,554.34/2,120,645.61 = 857,631.78/x
  3. Step 3: Cross multiply
    1,536,554.34x = 2,120,645.61 × 857,631.78
  4. Step 4: Simplify right side
    1,536,554.34x = 1,818,733,069,253.49
  5. Step 5: Solve for x
    x = 1,818,733,069,253.49/1,536,554.34
  6. Step 6: Final answer
    x = 1,183,643.83

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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.