Home / 1,386,928.14-1,913,967.92-775,091.12

Finding the Fourth Proportional to 1,386,928.14, 1,913,967.92 and 775,091.12

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Solution

The fourth proportional to 1,386,928.14, 1,913,967.92 and 775,091.12 is: 1,069,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,928.14 : 1,913,967.92 = 775,091.12 : x
  2. Step 2: Convert to fraction form
    1,386,928.14/1,913,967.92 = 775,091.12/x
  3. Step 3: Cross multiply
    1,386,928.14x = 1,913,967.92 × 775,091.12
  4. Step 4: Simplify right side
    1,386,928.14x = 1,483,499,525,311.58
  5. Step 5: Solve for x
    x = 1,483,499,525,311.58/1,386,928.14
  6. Step 6: Final answer
    x = 1,069,629.70

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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.