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Finding the Fourth Proportional to 448,497.16, 618,282.98 and 352,837.72

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Solution

The fourth proportional to 448,497.16, 618,282.98 and 352,837.72 is: 486,410.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,497.16 : 618,282.98 = 352,837.72 : x
  2. Step 2: Convert to fraction form
    448,497.16/618,282.98 = 352,837.72/x
  3. Step 3: Cross multiply
    448,497.16x = 618,282.98 × 352,837.72
  4. Step 4: Simplify right side
    448,497.16x = 218,153,556,978.01
  5. Step 5: Solve for x
    x = 218,153,556,978.01/448,497.16
  6. Step 6: Final answer
    x = 486,410.12

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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.