Home / 1,185,874.64-1,636,504.96-642,010.24

Finding the Fourth Proportional to 1,185,874.64, 1,636,504.96 and 642,010.24

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Solution

The fourth proportional to 1,185,874.64, 1,636,504.96 and 642,010.24 is: 885,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,874.64 : 1,636,504.96 = 642,010.24 : x
  2. Step 2: Convert to fraction form
    1,185,874.64/1,636,504.96 = 642,010.24/x
  3. Step 3: Cross multiply
    1,185,874.64x = 1,636,504.96 × 642,010.24
  4. Step 4: Simplify right side
    1,185,874.64x = 1,050,652,942,130.79
  5. Step 5: Solve for x
    x = 1,050,652,942,130.79/1,185,874.64
  6. Step 6: Final answer
    x = 885,973.03

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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.