Home / 1,227,011.87-1,840,296.19-428,521.76

Finding the Fourth Proportional to 1,227,011.87, 1,840,296.19 and 428,521.76

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Solution

The fourth proportional to 1,227,011.87, 1,840,296.19 and 428,521.76 is: 642,705.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,011.87 : 1,840,296.19 = 428,521.76 : x
  2. Step 2: Convert to fraction form
    1,227,011.87/1,840,296.19 = 428,521.76/x
  3. Step 3: Cross multiply
    1,227,011.87x = 1,840,296.19 × 428,521.76
  4. Step 4: Simplify right side
    1,227,011.87x = 788,606,962,260.09
  5. Step 5: Solve for x
    x = 788,606,962,260.09/1,227,011.87
  6. Step 6: Final answer
    x = 642,705.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.