Home / 1,140,785.21-1,712,859.95-636,331.79

Finding the Fourth Proportional to 1,140,785.21, 1,712,859.95 and 636,331.79

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Solution

The fourth proportional to 1,140,785.21, 1,712,859.95 and 636,331.79 is: 955,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,785.21 : 1,712,859.95 = 636,331.79 : x
  2. Step 2: Convert to fraction form
    1,140,785.21/1,712,859.95 = 636,331.79/x
  3. Step 3: Cross multiply
    1,140,785.21x = 1,712,859.95 × 636,331.79
  4. Step 4: Simplify right side
    1,140,785.21x = 1,089,947,231,029.34
  5. Step 5: Solve for x
    x = 1,089,947,231,029.34/1,140,785.21
  6. Step 6: Final answer
    x = 955,435.98

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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.