Home / 979,842.09-1,352,162.07-550,122.06

Finding the Fourth Proportional to 979,842.09, 1,352,162.07 and 550,122.06

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Solution

The fourth proportional to 979,842.09, 1,352,162.07 and 550,122.06 is: 759,157.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,842.09 : 1,352,162.07 = 550,122.06 : x
  2. Step 2: Convert to fraction form
    979,842.09/1,352,162.07 = 550,122.06/x
  3. Step 3: Cross multiply
    979,842.09x = 1,352,162.07 × 550,122.06
  4. Step 4: Simplify right side
    979,842.09x = 743,854,183,402.26
  5. Step 5: Solve for x
    x = 743,854,183,402.26/979,842.09
  6. Step 6: Final answer
    x = 759,157.21

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.