Home / 1,934,415.40-2,900,586.30-811,215.40

Finding the Fourth Proportional to 1,934,415.40, 2,900,586.30 and 811,215.40

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Solution

The fourth proportional to 1,934,415.40, 2,900,586.30 and 811,215.40 is: 1,216,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,934,415.40 : 2,900,586.30 = 811,215.40 : x
  2. Step 2: Convert to fraction form
    1,934,415.40/2,900,586.30 = 811,215.40/x
  3. Step 3: Cross multiply
    1,934,415.40x = 2,900,586.30 × 811,215.40
  4. Step 4: Simplify right side
    1,934,415.40x = 2,353,000,275,589.02
  5. Step 5: Solve for x
    x = 2,353,000,275,589.02/1,934,415.40
  6. Step 6: Final answer
    x = 1,216,388.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.