Home / 1,386,444.69-1,912,965.73-805,322.52

Finding the Fourth Proportional to 1,386,444.69, 1,912,965.73 and 805,322.52

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Solution

The fourth proportional to 1,386,444.69, 1,912,965.73 and 805,322.52 is: 1,111,154.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,444.69 : 1,912,965.73 = 805,322.52 : x
  2. Step 2: Convert to fraction form
    1,386,444.69/1,912,965.73 = 805,322.52/x
  3. Step 3: Cross multiply
    1,386,444.69x = 1,912,965.73 × 805,322.52
  4. Step 4: Simplify right side
    1,386,444.69x = 1,540,554,380,343.93
  5. Step 5: Solve for x
    x = 1,540,554,380,343.93/1,386,444.69
  6. Step 6: Final answer
    x = 1,111,154.59

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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.