Home / 1,185,969.58-1,636,618.09-642,100.95

Finding the Fourth Proportional to 1,185,969.58, 1,636,618.09 and 642,100.95

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Solution

The fourth proportional to 1,185,969.58, 1,636,618.09 and 642,100.95 is: 886,088.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,969.58 : 1,636,618.09 = 642,100.95 : x
  2. Step 2: Convert to fraction form
    1,185,969.58/1,636,618.09 = 642,100.95/x
  3. Step 3: Cross multiply
    1,185,969.58x = 1,636,618.09 × 642,100.95
  4. Step 4: Simplify right side
    1,185,969.58x = 1,050,874,030,376.19
  5. Step 5: Solve for x
    x = 1,050,874,030,376.19/1,185,969.58
  6. Step 6: Final answer
    x = 886,088.52

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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.