Home / 1,213,855.25-1,820,870.36-465,901.25

Finding the Fourth Proportional to 1,213,855.25, 1,820,870.36 and 465,901.25

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Solution

The fourth proportional to 1,213,855.25, 1,820,870.36 and 465,901.25 is: 698,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,855.25 : 1,820,870.36 = 465,901.25 : x
  2. Step 2: Convert to fraction form
    1,213,855.25/1,820,870.36 = 465,901.25/x
  3. Step 3: Cross multiply
    1,213,855.25x = 1,820,870.36 × 465,901.25
  4. Step 4: Simplify right side
    1,213,855.25x = 848,345,776,811.95
  5. Step 5: Solve for x
    x = 848,345,776,811.95/1,213,855.25
  6. Step 6: Final answer
    x = 698,885.45

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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.