Home / 1,521,754.88-2,100,019.84-842,690.56

Finding the Fourth Proportional to 1,521,754.88, 2,100,019.84 and 842,690.56

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Solution

The fourth proportional to 1,521,754.88, 2,100,019.84 and 842,690.56 is: 1,162,911.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,754.88 : 2,100,019.84 = 842,690.56 : x
  2. Step 2: Convert to fraction form
    1,521,754.88/2,100,019.84 = 842,690.56/x
  3. Step 3: Cross multiply
    1,521,754.88x = 2,100,019.84 × 842,690.56
  4. Step 4: Simplify right side
    1,521,754.88x = 1,769,666,894,980.71
  5. Step 5: Solve for x
    x = 1,769,666,894,980.71/1,521,754.88
  6. Step 6: Final answer
    x = 1,162,911.92

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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.