Home / 900,809.49-1,243,106.49-492,906.66

Finding the Fourth Proportional to 900,809.49, 1,243,106.49 and 492,906.66

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Solution

The fourth proportional to 900,809.49, 1,243,106.49 and 492,906.66 is: 680,205.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,809.49 : 1,243,106.49 = 492,906.66 : x
  2. Step 2: Convert to fraction form
    900,809.49/1,243,106.49 = 492,906.66/x
  3. Step 3: Cross multiply
    900,809.49x = 1,243,106.49 × 492,906.66
  4. Step 4: Simplify right side
    900,809.49x = 612,735,468,010.22
  5. Step 5: Solve for x
    x = 612,735,468,010.22/900,809.49
  6. Step 6: Final answer
    x = 680,205.39

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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.