Home / 805,947.81-1,111,444.60-515,651.23

Finding the Fourth Proportional to 805,947.81, 1,111,444.60 and 515,651.23

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Solution

The fourth proportional to 805,947.81, 1,111,444.60 and 515,651.23 is: 711,110.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,947.81 : 1,111,444.60 = 515,651.23 : x
  2. Step 2: Convert to fraction form
    805,947.81/1,111,444.60 = 515,651.23/x
  3. Step 3: Cross multiply
    805,947.81x = 1,111,444.60 × 515,651.23
  4. Step 4: Simplify right side
    805,947.81x = 573,117,775,066.86
  5. Step 5: Solve for x
    x = 573,117,775,066.86/805,947.81
  6. Step 6: Final answer
    x = 711,110.28

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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.