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Finding the Fourth Proportional to 489,264.90, 733,897.35 and 447,930.60

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Solution

The fourth proportional to 489,264.90, 733,897.35 and 447,930.60 is: 671,895.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,264.90 : 733,897.35 = 447,930.60 : x
  2. Step 2: Convert to fraction form
    489,264.90/733,897.35 = 447,930.60/x
  3. Step 3: Cross multiply
    489,264.90x = 733,897.35 × 447,930.60
  4. Step 4: Simplify right side
    489,264.90x = 328,735,080,323.91
  5. Step 5: Solve for x
    x = 328,735,080,323.91/489,264.90
  6. Step 6: Final answer
    x = 671,895.90

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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.