Home / 900,728.60-1,242,994.80-492,825.68

Finding the Fourth Proportional to 900,728.60, 1,242,994.80 and 492,825.68

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Solution

The fourth proportional to 900,728.60, 1,242,994.80 and 492,825.68 is: 680,093.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,728.60 : 1,242,994.80 = 492,825.68 : x
  2. Step 2: Convert to fraction form
    900,728.60/1,242,994.80 = 492,825.68/x
  3. Step 3: Cross multiply
    900,728.60x = 1,242,994.80 × 492,825.68
  4. Step 4: Simplify right side
    900,728.60x = 612,579,757,546.46
  5. Step 5: Solve for x
    x = 612,579,757,546.46/900,728.60
  6. Step 6: Final answer
    x = 680,093.60

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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.