Home / 808,085.16-1,212,127.74-247,119.66

Finding the Fourth Proportional to 808,085.16, 1,212,127.74 and 247,119.66

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Solution

The fourth proportional to 808,085.16, 1,212,127.74 and 247,119.66 is: 370,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,085.16 : 1,212,127.74 = 247,119.66 : x
  2. Step 2: Convert to fraction form
    808,085.16/1,212,127.74 = 247,119.66/x
  3. Step 3: Cross multiply
    808,085.16x = 1,212,127.74 × 247,119.66
  4. Step 4: Simplify right side
    808,085.16x = 299,540,594,985.37
  5. Step 5: Solve for x
    x = 299,540,594,985.37/808,085.16
  6. Step 6: Final answer
    x = 370,679.49

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Double scale
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Similar ratio
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1.5x scale

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.