Home / 1,319,904.64-1,820,527.28-1,211,358.72

Finding the Fourth Proportional to 1,319,904.64, 1,820,527.28 and 1,211,358.72

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Solution

The fourth proportional to 1,319,904.64, 1,820,527.28 and 1,211,358.72 is: 1,670,811.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,904.64 : 1,820,527.28 = 1,211,358.72 : x
  2. Step 2: Convert to fraction form
    1,319,904.64/1,820,527.28 = 1,211,358.72/x
  3. Step 3: Cross multiply
    1,319,904.64x = 1,820,527.28 × 1,211,358.72
  4. Step 4: Simplify right side
    1,319,904.64x = 2,205,311,595,625.88
  5. Step 5: Solve for x
    x = 2,205,311,595,625.88/1,319,904.64
  6. Step 6: Final answer
    x = 1,670,811.31

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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.