Home / 1,221,935.90-1,686,310.21-705,680.46

Finding the Fourth Proportional to 1,221,935.90, 1,686,310.21 and 705,680.46

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Solution

The fourth proportional to 1,221,935.90, 1,686,310.21 and 705,680.46 is: 973,861.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,935.90 : 1,686,310.21 = 705,680.46 : x
  2. Step 2: Convert to fraction form
    1,221,935.90/1,686,310.21 = 705,680.46/x
  3. Step 3: Cross multiply
    1,221,935.90x = 1,686,310.21 × 705,680.46
  4. Step 4: Simplify right side
    1,221,935.90x = 1,189,996,164,695.50
  5. Step 5: Solve for x
    x = 1,189,996,164,695.50/1,221,935.90
  6. Step 6: Final answer
    x = 973,861.37

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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.