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Finding the Fourth Proportional to 612,172.24, 844,554.72 and 354,001.44

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Solution

The fourth proportional to 612,172.24, 844,554.72 and 354,001.44 is: 488,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,172.24 : 844,554.72 = 354,001.44 : x
  2. Step 2: Convert to fraction form
    612,172.24/844,554.72 = 354,001.44/x
  3. Step 3: Cross multiply
    612,172.24x = 844,554.72 × 354,001.44
  4. Step 4: Simplify right side
    612,172.24x = 298,973,587,038.80
  5. Step 5: Solve for x
    x = 298,973,587,038.80/612,172.24
  6. Step 6: Final answer
    x = 488,381.48

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1.5x scale

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.