Home / 902,035.72-1,244,790.90-520,039.72

Finding the Fourth Proportional to 902,035.72, 1,244,790.90 and 520,039.72

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Solution

The fourth proportional to 902,035.72, 1,244,790.90 and 520,039.72 is: 717,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,035.72 : 1,244,790.90 = 520,039.72 : x
  2. Step 2: Convert to fraction form
    902,035.72/1,244,790.90 = 520,039.72/x
  3. Step 3: Cross multiply
    902,035.72x = 1,244,790.90 × 520,039.72
  4. Step 4: Simplify right side
    902,035.72x = 647,340,711,094.55
  5. Step 5: Solve for x
    x = 647,340,711,094.55/902,035.72
  6. Step 6: Final answer
    x = 717,644.21

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1.5x scale

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.