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Finding the Fourth Proportional to 620,115.24, 930,002.70 and 170,730.60

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Solution

The fourth proportional to 620,115.24, 930,002.70 and 170,730.60 is: 256,049.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,115.24 : 930,002.70 = 170,730.60 : x
  2. Step 2: Convert to fraction form
    620,115.24/930,002.70 = 170,730.60/x
  3. Step 3: Cross multiply
    620,115.24x = 930,002.70 × 170,730.60
  4. Step 4: Simplify right side
    620,115.24x = 158,779,918,972.62
  5. Step 5: Solve for x
    x = 158,779,918,972.62/620,115.24
  6. Step 6: Final answer
    x = 256,049.05

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1.5x scale

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.