Home / 1,719,489.90-2,579,256.45-521,424.30

Finding the Fourth Proportional to 1,719,489.90, 2,579,256.45 and 521,424.30

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Solution

The fourth proportional to 1,719,489.90, 2,579,256.45 and 521,424.30 is: 782,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,719,489.90 : 2,579,256.45 = 521,424.30 : x
  2. Step 2: Convert to fraction form
    1,719,489.90/2,579,256.45 = 521,424.30/x
  3. Step 3: Cross multiply
    1,719,489.90x = 2,579,256.45 × 521,424.30
  4. Step 4: Simplify right side
    1,719,489.90x = 1,344,886,988,961.74
  5. Step 5: Solve for x
    x = 1,344,886,988,961.74/1,719,489.90
  6. Step 6: Final answer
    x = 782,143.00

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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.