Home / 1,185,801.40-1,636,406.45-641,937.18

Finding the Fourth Proportional to 1,185,801.40, 1,636,406.45 and 641,937.18

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Solution

The fourth proportional to 1,185,801.40, 1,636,406.45 and 641,937.18 is: 885,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,801.40 : 1,636,406.45 = 641,937.18 : x
  2. Step 2: Convert to fraction form
    1,185,801.40/1,636,406.45 = 641,937.18/x
  3. Step 3: Cross multiply
    1,185,801.40x = 1,636,406.45 × 641,937.18
  4. Step 4: Simplify right side
    1,185,801.40x = 1,050,470,141,846.81
  5. Step 5: Solve for x
    x = 1,050,470,141,846.81/1,185,801.40
  6. Step 6: Final answer
    x = 885,873.59

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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.