Home / 1,290,708.74-1,936,189.62-470,270.43

Finding the Fourth Proportional to 1,290,708.74, 1,936,189.62 and 470,270.43

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Solution

The fourth proportional to 1,290,708.74, 1,936,189.62 and 470,270.43 is: 705,451.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,708.74 : 1,936,189.62 = 470,270.43 : x
  2. Step 2: Convert to fraction form
    1,290,708.74/1,936,189.62 = 470,270.43/x
  3. Step 3: Cross multiply
    1,290,708.74x = 1,936,189.62 × 470,270.43
  4. Step 4: Simplify right side
    1,290,708.74x = 910,532,725,158.94
  5. Step 5: Solve for x
    x = 910,532,725,158.94/1,290,708.74
  6. Step 6: Final answer
    x = 705,451.74

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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.