Home / 1,306,467.78-1,959,700.95-407,986.52

Finding the Fourth Proportional to 1,306,467.78, 1,959,700.95 and 407,986.52

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Solution

The fourth proportional to 1,306,467.78, 1,959,700.95 and 407,986.52 is: 611,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,467.78 : 1,959,700.95 = 407,986.52 : x
  2. Step 2: Convert to fraction form
    1,306,467.78/1,959,700.95 = 407,986.52/x
  3. Step 3: Cross multiply
    1,306,467.78x = 1,959,700.95 × 407,986.52
  4. Step 4: Simplify right side
    1,306,467.78x = 799,531,572,629.76
  5. Step 5: Solve for x
    x = 799,531,572,629.76/1,306,467.78
  6. Step 6: Final answer
    x = 611,979.56

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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.