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Finding the Fourth Proportional to 630,925.93, 870,644.83 and 344,390.66

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Solution

The fourth proportional to 630,925.93, 870,644.83 and 344,390.66 is: 475,241.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,925.93 : 870,644.83 = 344,390.66 : x
  2. Step 2: Convert to fraction form
    630,925.93/870,644.83 = 344,390.66/x
  3. Step 3: Cross multiply
    630,925.93x = 870,644.83 × 344,390.66
  4. Step 4: Simplify right side
    630,925.93x = 299,841,947,629.29
  5. Step 5: Solve for x
    x = 299,841,947,629.29/630,925.93
  6. Step 6: Final answer
    x = 475,241.12

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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.