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Finding the Fourth Proportional to 492,722.40, 739,083.60 and 488,056.80

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Solution

The fourth proportional to 492,722.40, 739,083.60 and 488,056.80 is: 732,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,722.40 : 739,083.60 = 488,056.80 : x
  2. Step 2: Convert to fraction form
    492,722.40/739,083.60 = 488,056.80/x
  3. Step 3: Cross multiply
    492,722.40x = 739,083.60 × 488,056.80
  4. Step 4: Simplify right side
    492,722.40x = 360,714,776,748.48
  5. Step 5: Solve for x
    x = 360,714,776,748.48/492,722.40
  6. Step 6: Final answer
    x = 732,085.20

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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.