Home / 856,428.90-1,284,643.35-501,843.30

Finding the Fourth Proportional to 856,428.90, 1,284,643.35 and 501,843.30

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Solution

The fourth proportional to 856,428.90, 1,284,643.35 and 501,843.30 is: 752,764.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,428.90 : 1,284,643.35 = 501,843.30 : x
  2. Step 2: Convert to fraction form
    856,428.90/1,284,643.35 = 501,843.30/x
  3. Step 3: Cross multiply
    856,428.90x = 1,284,643.35 × 501,843.30
  4. Step 4: Simplify right side
    856,428.90x = 644,689,658,087.06
  5. Step 5: Solve for x
    x = 644,689,658,087.06/856,428.90
  6. Step 6: Final answer
    x = 752,764.95

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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.