Home / 612,757.10-845,584.50-340,817.30

Finding the Fourth Proportional to 612,757.10, 845,584.50 and 340,817.30

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Solution

The fourth proportional to 612,757.10, 845,584.50 and 340,817.30 is: 470,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,757.10 : 845,584.50 = 340,817.30 : x
  2. Step 2: Convert to fraction form
    612,757.10/845,584.50 = 340,817.30/x
  3. Step 3: Cross multiply
    612,757.10x = 845,584.50 × 340,817.30
  4. Step 4: Simplify right side
    612,757.10x = 288,189,826,211.85
  5. Step 5: Solve for x
    x = 288,189,826,211.85/612,757.10
  6. Step 6: Final answer
    x = 470,316.58

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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.