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Finding the Fourth Proportional to 616,054.08, 850,136.72 and 340,407.56

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Solution

The fourth proportional to 616,054.08, 850,136.72 and 340,407.56 is: 469,752.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,054.08 : 850,136.72 = 340,407.56 : x
  2. Step 2: Convert to fraction form
    616,054.08/850,136.72 = 340,407.56/x
  3. Step 3: Cross multiply
    616,054.08x = 850,136.72 × 340,407.56
  4. Step 4: Simplify right side
    616,054.08x = 289,392,963,121.94
  5. Step 5: Solve for x
    x = 289,392,963,121.94/616,054.08
  6. Step 6: Final answer
    x = 469,752.53

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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.