Home / 1,145,443.41-1,580,715.59-636,145.78

Finding the Fourth Proportional to 1,145,443.41, 1,580,715.59 and 636,145.78

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Solution

The fourth proportional to 1,145,443.41, 1,580,715.59 and 636,145.78 is: 877,883.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,443.41 : 1,580,715.59 = 636,145.78 : x
  2. Step 2: Convert to fraction form
    1,145,443.41/1,580,715.59 = 636,145.78/x
  3. Step 3: Cross multiply
    1,145,443.41x = 1,580,715.59 × 636,145.78
  4. Step 4: Simplify right side
    1,145,443.41x = 1,005,565,551,958.71
  5. Step 5: Solve for x
    x = 1,005,565,551,958.71/1,145,443.41
  6. Step 6: Final answer
    x = 877,883.22

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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.