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Finding the Fourth Proportional to 438,458.92, 657,897.24 and 303,730.54

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Solution

The fourth proportional to 438,458.92, 657,897.24 and 303,730.54 is: 455,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,458.92 : 657,897.24 = 303,730.54 : x
  2. Step 2: Convert to fraction form
    438,458.92/657,897.24 = 303,730.54/x
  3. Step 3: Cross multiply
    438,458.92x = 657,897.24 × 303,730.54
  4. Step 4: Simplify right side
    438,458.92x = 199,823,483,969.71
  5. Step 5: Solve for x
    x = 199,823,483,969.71/438,458.92
  6. Step 6: Final answer
    x = 455,740.49

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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.