Home / 1,020,447.20-1,529,358.60-620,663.60

Finding the Fourth Proportional to 1,020,447.20, 1,529,358.60 and 620,663.60

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Solution

The fourth proportional to 1,020,447.20, 1,529,358.60 and 620,663.60 is: 930,197.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,447.20 : 1,529,358.60 = 620,663.60 : x
  2. Step 2: Convert to fraction form
    1,020,447.20/1,529,358.60 = 620,663.60/x
  3. Step 3: Cross multiply
    1,020,447.20x = 1,529,358.60 × 620,663.60
  4. Step 4: Simplify right side
    1,020,447.20x = 949,217,214,366.96
  5. Step 5: Solve for x
    x = 949,217,214,366.96/1,020,447.20
  6. Step 6: Final answer
    x = 930,197.28

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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.