Home / 1,578,137.80-2,367,206.70-513,214.60

Finding the Fourth Proportional to 1,578,137.80, 2,367,206.70 and 513,214.60

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Solution

The fourth proportional to 1,578,137.80, 2,367,206.70 and 513,214.60 is: 769,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,137.80 : 2,367,206.70 = 513,214.60 : x
  2. Step 2: Convert to fraction form
    1,578,137.80/2,367,206.70 = 513,214.60/x
  3. Step 3: Cross multiply
    1,578,137.80x = 2,367,206.70 × 513,214.60
  4. Step 4: Simplify right side
    1,578,137.80x = 1,214,885,039,657.82
  5. Step 5: Solve for x
    x = 1,214,885,039,657.82/1,578,137.80
  6. Step 6: Final answer
    x = 769,821.90

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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.