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Finding the Fourth Proportional to 492,779.20, 739,168.80 and 393,134.02

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Solution

The fourth proportional to 492,779.20, 739,168.80 and 393,134.02 is: 589,701.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,779.20 : 739,168.80 = 393,134.02 : x
  2. Step 2: Convert to fraction form
    492,779.20/739,168.80 = 393,134.02/x
  3. Step 3: Cross multiply
    492,779.20x = 739,168.80 × 393,134.02
  4. Step 4: Simplify right side
    492,779.20x = 290,592,401,802.58
  5. Step 5: Solve for x
    x = 290,592,401,802.58/492,779.20
  6. Step 6: Final answer
    x = 589,701.03

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Similar ratio
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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.