Home / 1,238,569.26-1,857,407.99-428,733.60

Finding the Fourth Proportional to 1,238,569.26, 1,857,407.99 and 428,733.60

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Solution

The fourth proportional to 1,238,569.26, 1,857,407.99 and 428,733.60 is: 642,946.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,569.26 : 1,857,407.99 = 428,733.60 : x
  2. Step 2: Convert to fraction form
    1,238,569.26/1,857,407.99 = 428,733.60/x
  3. Step 3: Cross multiply
    1,238,569.26x = 1,857,407.99 × 428,733.60
  4. Step 4: Simplify right side
    1,238,569.26x = 796,333,212,077.80
  5. Step 5: Solve for x
    x = 796,333,212,077.80/1,238,569.26
  6. Step 6: Final answer
    x = 642,946.05

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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.