Home / 1,285,235.95-1,773,625.61-712,313.03

Finding the Fourth Proportional to 1,285,235.95, 1,773,625.61 and 712,313.03

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Solution

The fourth proportional to 1,285,235.95, 1,773,625.61 and 712,313.03 is: 982,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,235.95 : 1,773,625.61 = 712,313.03 : x
  2. Step 2: Convert to fraction form
    1,285,235.95/1,773,625.61 = 712,313.03/x
  3. Step 3: Cross multiply
    1,285,235.95x = 1,773,625.61 × 712,313.03
  4. Step 4: Simplify right side
    1,285,235.95x = 1,263,376,631,018.06
  5. Step 5: Solve for x
    x = 1,263,376,631,018.06/1,285,235.95
  6. Step 6: Final answer
    x = 982,991.98

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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.