Home / 828,003.60-1,242,005.40-788,637.60

Finding the Fourth Proportional to 828,003.60, 1,242,005.40 and 788,637.60

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Solution

The fourth proportional to 828,003.60, 1,242,005.40 and 788,637.60 is: 1,182,956.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,003.60 : 1,242,005.40 = 788,637.60 : x
  2. Step 2: Convert to fraction form
    828,003.60/1,242,005.40 = 788,637.60/x
  3. Step 3: Cross multiply
    828,003.60x = 1,242,005.40 × 788,637.60
  4. Step 4: Simplify right side
    828,003.60x = 979,492,157,843.04
  5. Step 5: Solve for x
    x = 979,492,157,843.04/828,003.60
  6. Step 6: Final answer
    x = 1,182,956.40

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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.