Home / 900,783.96-1,243,029.81-492,893.74

Finding the Fourth Proportional to 900,783.96, 1,243,029.81 and 492,893.74

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Solution

The fourth proportional to 900,783.96, 1,243,029.81 and 492,893.74 is: 680,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,783.96 : 1,243,029.81 = 492,893.74 : x
  2. Step 2: Convert to fraction form
    900,783.96/1,243,029.81 = 492,893.74/x
  3. Step 3: Cross multiply
    900,783.96x = 1,243,029.81 × 492,893.74
  4. Step 4: Simplify right side
    900,783.96x = 612,681,611,982.39
  5. Step 5: Solve for x
    x = 612,681,611,982.39/900,783.96
  6. Step 6: Final answer
    x = 680,164.88

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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.