Home / 1,386,097.35-1,912,821-774,275.90

Finding the Fourth Proportional to 1,386,097.35, 1,912,821 and 774,275.90

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Solution

The fourth proportional to 1,386,097.35, 1,912,821 and 774,275.90 is: 1,068,504.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,097.35 : 1,912,821 = 774,275.90 : x
  2. Step 2: Convert to fraction form
    1,386,097.35/1,912,821 = 774,275.90/x
  3. Step 3: Cross multiply
    1,386,097.35x = 1,912,821 × 774,275.90
  4. Step 4: Simplify right side
    1,386,097.35x = 1,481,051,191,749.80
  5. Step 5: Solve for x
    x = 1,481,051,191,749.80/1,386,097.35
  6. Step 6: Final answer
    x = 1,068,504.45

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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.