Home / 1,383,199.50-1,908,873.63-779,587.50

Finding the Fourth Proportional to 1,383,199.50, 1,908,873.63 and 779,587.50

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Solution

The fourth proportional to 1,383,199.50, 1,908,873.63 and 779,587.50 is: 1,075,863.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,199.50 : 1,908,873.63 = 779,587.50 : x
  2. Step 2: Convert to fraction form
    1,383,199.50/1,908,873.63 = 779,587.50/x
  3. Step 3: Cross multiply
    1,383,199.50x = 1,908,873.63 × 779,587.50
  4. Step 4: Simplify right side
    1,383,199.50x = 1,488,134,021,027.63
  5. Step 5: Solve for x
    x = 1,488,134,021,027.63/1,383,199.50
  6. Step 6: Final answer
    x = 1,075,863.62

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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.