Home / 1,205,215.90-1,807,928.91-395,357.49

Finding the Fourth Proportional to 1,205,215.90, 1,807,928.91 and 395,357.49

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Solution

The fourth proportional to 1,205,215.90, 1,807,928.91 and 395,357.49 is: 593,070.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,215.90 : 1,807,928.91 = 395,357.49 : x
  2. Step 2: Convert to fraction form
    1,205,215.90/1,807,928.91 = 395,357.49/x
  3. Step 3: Cross multiply
    1,205,215.90x = 1,807,928.91 × 395,357.49
  4. Step 4: Simplify right side
    1,205,215.90x = 714,778,235,956.04
  5. Step 5: Solve for x
    x = 714,778,235,956.04/1,205,215.90
  6. Step 6: Final answer
    x = 593,070.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.