Home / 1,528,824.43-2,109,723.93-840,491.30

Finding the Fourth Proportional to 1,528,824.43, 2,109,723.93 and 840,491.30

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Solution

The fourth proportional to 1,528,824.43, 2,109,723.93 and 840,491.30 is: 1,159,848.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,824.43 : 2,109,723.93 = 840,491.30 : x
  2. Step 2: Convert to fraction form
    1,528,824.43/2,109,723.93 = 840,491.30/x
  3. Step 3: Cross multiply
    1,528,824.43x = 2,109,723.93 × 840,491.30
  4. Step 4: Simplify right side
    1,528,824.43x = 1,773,204,601,973.92
  5. Step 5: Solve for x
    x = 1,773,204,601,973.92/1,528,824.43
  6. Step 6: Final answer
    x = 1,159,848.42

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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.