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Finding the Fourth Proportional to 489,218.40, 733,827.60 and 447,884.10

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Solution

The fourth proportional to 489,218.40, 733,827.60 and 447,884.10 is: 671,826.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,218.40 : 733,827.60 = 447,884.10 : x
  2. Step 2: Convert to fraction form
    489,218.40/733,827.60 = 447,884.10/x
  3. Step 3: Cross multiply
    489,218.40x = 733,827.60 × 447,884.10
  4. Step 4: Simplify right side
    489,218.40x = 328,669,714,181.16
  5. Step 5: Solve for x
    x = 328,669,714,181.16/489,218.40
  6. Step 6: Final answer
    x = 671,826.15

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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.