Home / 1,384,848.18-1,911,409.31-812,072.88

Finding the Fourth Proportional to 1,384,848.18, 1,911,409.31 and 812,072.88

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Solution

The fourth proportional to 1,384,848.18, 1,911,409.31 and 812,072.88 is: 1,120,847.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,848.18 : 1,911,409.31 = 812,072.88 : x
  2. Step 2: Convert to fraction form
    1,384,848.18/1,911,409.31 = 812,072.88/x
  3. Step 3: Cross multiply
    1,384,848.18x = 1,911,409.31 × 812,072.88
  4. Step 4: Simplify right side
    1,384,848.18x = 1,552,203,663,230.51
  5. Step 5: Solve for x
    x = 1,552,203,663,230.51/1,384,848.18
  6. Step 6: Final answer
    x = 1,120,847.53

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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.