Home / 1,578,262.59-2,177,430.26-1,292,990.31

Finding the Fourth Proportional to 1,578,262.59, 2,177,430.26 and 1,292,990.31

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Solution

The fourth proportional to 1,578,262.59, 2,177,430.26 and 1,292,990.31 is: 1,783,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,262.59 : 2,177,430.26 = 1,292,990.31 : x
  2. Step 2: Convert to fraction form
    1,578,262.59/2,177,430.26 = 1,292,990.31/x
  3. Step 3: Cross multiply
    1,578,262.59x = 2,177,430.26 × 1,292,990.31
  4. Step 4: Simplify right side
    1,578,262.59x = 2,815,396,220,415.83
  5. Step 5: Solve for x
    x = 2,815,396,220,415.83/1,578,262.59
  6. Step 6: Final answer
    x = 1,783,857.92

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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.