Home / 830,159.36-1,138,147.44-815,025.73

Finding the Fourth Proportional to 830,159.36, 1,138,147.44 and 815,025.73

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Solution

The fourth proportional to 830,159.36, 1,138,147.44 and 815,025.73 is: 1,117,399.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,159.36 : 1,138,147.44 = 815,025.73 : x
  2. Step 2: Convert to fraction form
    830,159.36/1,138,147.44 = 815,025.73/x
  3. Step 3: Cross multiply
    830,159.36x = 1,138,147.44 × 815,025.73
  4. Step 4: Simplify right side
    830,159.36x = 927,619,444,058.50
  5. Step 5: Solve for x
    x = 927,619,444,058.50/830,159.36
  6. Step 6: Final answer
    x = 1,117,399.25

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.