Home / 1,384,892.74-1,911,470.81-812,117.44

Finding the Fourth Proportional to 1,384,892.74, 1,911,470.81 and 812,117.44

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Solution

The fourth proportional to 1,384,892.74, 1,911,470.81 and 812,117.44 is: 1,120,909.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,892.74 : 1,911,470.81 = 812,117.44 : x
  2. Step 2: Convert to fraction form
    1,384,892.74/1,911,470.81 = 812,117.44/x
  3. Step 3: Cross multiply
    1,384,892.74x = 1,911,470.81 × 812,117.44
  4. Step 4: Simplify right side
    1,384,892.74x = 1,552,338,779,180.68
  5. Step 5: Solve for x
    x = 1,552,338,779,180.68/1,384,892.74
  6. Step 6: Final answer
    x = 1,120,909.03

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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.