Home / 902,010.72-1,244,756.48-520,014.72

Finding the Fourth Proportional to 902,010.72, 1,244,756.48 and 520,014.72

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Solution

The fourth proportional to 902,010.72, 1,244,756.48 and 520,014.72 is: 717,609.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,010.72 : 1,244,756.48 = 520,014.72 : x
  2. Step 2: Convert to fraction form
    902,010.72/1,244,756.48 = 520,014.72/x
  3. Step 3: Cross multiply
    902,010.72x = 1,244,756.48 × 520,014.72
  4. Step 4: Simplify right side
    902,010.72x = 647,291,692,415.39
  5. Step 5: Solve for x
    x = 647,291,692,415.39/902,010.72
  6. Step 6: Final answer
    x = 717,609.76

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Double scale
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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.