Home / 1,259,609.70-1,889,357.16-406,720.74

Finding the Fourth Proportional to 1,259,609.70, 1,889,357.16 and 406,720.74

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Solution

The fourth proportional to 1,259,609.70, 1,889,357.16 and 406,720.74 is: 610,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,609.70 : 1,889,357.16 = 406,720.74 : x
  2. Step 2: Convert to fraction form
    1,259,609.70/1,889,357.16 = 406,720.74/x
  3. Step 3: Cross multiply
    1,259,609.70x = 1,889,357.16 × 406,720.74
  4. Step 4: Simplify right side
    1,259,609.70x = 768,440,742,239.50
  5. Step 5: Solve for x
    x = 768,440,742,239.50/1,259,609.70
  6. Step 6: Final answer
    x = 610,062.58

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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.