Home / 1,384,847.18-1,911,407.93-812,071.88

Finding the Fourth Proportional to 1,384,847.18, 1,911,407.93 and 812,071.88

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Solution

The fourth proportional to 1,384,847.18, 1,911,407.93 and 812,071.88 is: 1,120,846.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,847.18 : 1,911,407.93 = 812,071.88 : x
  2. Step 2: Convert to fraction form
    1,384,847.18/1,911,407.93 = 812,071.88/x
  3. Step 3: Cross multiply
    1,384,847.18x = 1,911,407.93 × 812,071.88
  4. Step 4: Simplify right side
    1,384,847.18x = 1,552,200,627,757.66
  5. Step 5: Solve for x
    x = 1,552,200,627,757.66/1,384,847.18
  6. Step 6: Final answer
    x = 1,120,846.15

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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.