Home / 1,306,420.50-1,959,637.35-407,786.91

Finding the Fourth Proportional to 1,306,420.50, 1,959,637.35 and 407,786.91

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Solution

The fourth proportional to 1,306,420.50, 1,959,637.35 and 407,786.91 is: 611,682.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,420.50 : 1,959,637.35 = 407,786.91 : x
  2. Step 2: Convert to fraction form
    1,306,420.50/1,959,637.35 = 407,786.91/x
  3. Step 3: Cross multiply
    1,306,420.50x = 1,959,637.35 × 407,786.91
  4. Step 4: Simplify right side
    1,306,420.50x = 799,114,453,857.65
  5. Step 5: Solve for x
    x = 799,114,453,857.65/1,306,420.50
  6. Step 6: Final answer
    x = 611,682.42

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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.