Home / 1,290,709.74-1,936,191.12-470,271.43

Finding the Fourth Proportional to 1,290,709.74, 1,936,191.12 and 470,271.43

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Solution

The fourth proportional to 1,290,709.74, 1,936,191.12 and 470,271.43 is: 705,453.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,709.74 : 1,936,191.12 = 470,271.43 : x
  2. Step 2: Convert to fraction form
    1,290,709.74/1,936,191.12 = 470,271.43/x
  3. Step 3: Cross multiply
    1,290,709.74x = 1,936,191.12 × 470,271.43
  4. Step 4: Simplify right side
    1,290,709.74x = 910,535,366,755.70
  5. Step 5: Solve for x
    x = 910,535,366,755.70/1,290,709.74
  6. Step 6: Final answer
    x = 705,453.24

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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.