Home / 1,020,185.16-1,407,866.31-561,305.79

Finding the Fourth Proportional to 1,020,185.16, 1,407,866.31 and 561,305.79

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Solution

The fourth proportional to 1,020,185.16, 1,407,866.31 and 561,305.79 is: 774,607.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,185.16 : 1,407,866.31 = 561,305.79 : x
  2. Step 2: Convert to fraction form
    1,020,185.16/1,407,866.31 = 561,305.79/x
  3. Step 3: Cross multiply
    1,020,185.16x = 1,407,866.31 × 561,305.79
  4. Step 4: Simplify right side
    1,020,185.16x = 790,243,511,348.94
  5. Step 5: Solve for x
    x = 790,243,511,348.94/1,020,185.16
  6. Step 6: Final answer
    x = 774,607.93

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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.