Home / 786,462.22-1,084,976.31-499,828.51

Finding the Fourth Proportional to 786,462.22, 1,084,976.31 and 499,828.51

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Solution

The fourth proportional to 786,462.22, 1,084,976.31 and 499,828.51 is: 689,546.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,462.22 : 1,084,976.31 = 499,828.51 : x
  2. Step 2: Convert to fraction form
    786,462.22/1,084,976.31 = 499,828.51/x
  3. Step 3: Cross multiply
    786,462.22x = 1,084,976.31 × 499,828.51
  4. Step 4: Simplify right side
    786,462.22x = 542,302,092,412.60
  5. Step 5: Solve for x
    x = 542,302,092,412.60/786,462.22
  6. Step 6: Final answer
    x = 689,546.27

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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.