Home / 1,261,200.78-1,740,509.34-717,432.36

Finding the Fourth Proportional to 1,261,200.78, 1,740,509.34 and 717,432.36

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Solution

The fourth proportional to 1,261,200.78, 1,740,509.34 and 717,432.36 is: 990,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,200.78 : 1,740,509.34 = 717,432.36 : x
  2. Step 2: Convert to fraction form
    1,261,200.78/1,740,509.34 = 717,432.36/x
  3. Step 3: Cross multiply
    1,261,200.78x = 1,740,509.34 × 717,432.36
  4. Step 4: Simplify right side
    1,261,200.78x = 1,248,697,723,398.24
  5. Step 5: Solve for x
    x = 1,248,697,723,398.24/1,261,200.78
  6. Step 6: Final answer
    x = 990,086.39

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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.