Home / 1,270,830.32-1,753,307.44-812,213.34

Finding the Fourth Proportional to 1,270,830.32, 1,753,307.44 and 812,213.34

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Solution

The fourth proportional to 1,270,830.32, 1,753,307.44 and 812,213.34 is: 1,120,574.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,830.32 : 1,753,307.44 = 812,213.34 : x
  2. Step 2: Convert to fraction form
    1,270,830.32/1,753,307.44 = 812,213.34/x
  3. Step 3: Cross multiply
    1,270,830.32x = 1,753,307.44 × 812,213.34
  4. Step 4: Simplify right side
    1,270,830.32x = 1,424,059,691,889.25
  5. Step 5: Solve for x
    x = 1,424,059,691,889.25/1,270,830.32
  6. Step 6: Final answer
    x = 1,120,574.22

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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.