Home / 1,205,803.65-1,663,947.90-715,794.12

Finding the Fourth Proportional to 1,205,803.65, 1,663,947.90 and 715,794.12

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Solution

The fourth proportional to 1,205,803.65, 1,663,947.90 and 715,794.12 is: 987,759.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,803.65 : 1,663,947.90 = 715,794.12 : x
  2. Step 2: Convert to fraction form
    1,205,803.65/1,663,947.90 = 715,794.12/x
  3. Step 3: Cross multiply
    1,205,803.65x = 1,663,947.90 × 715,794.12
  4. Step 4: Simplify right side
    1,205,803.65x = 1,191,044,122,806.35
  5. Step 5: Solve for x
    x = 1,191,044,122,806.35/1,205,803.65
  6. Step 6: Final answer
    x = 987,759.59

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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.