Home / 885,795.60-1,328,693.40-839,139.60

Finding the Fourth Proportional to 885,795.60, 1,328,693.40 and 839,139.60

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Solution

The fourth proportional to 885,795.60, 1,328,693.40 and 839,139.60 is: 1,258,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,795.60 : 1,328,693.40 = 839,139.60 : x
  2. Step 2: Convert to fraction form
    885,795.60/1,328,693.40 = 839,139.60/x
  3. Step 3: Cross multiply
    885,795.60x = 1,328,693.40 × 839,139.60
  4. Step 4: Simplify right side
    885,795.60x = 1,114,959,248,198.64
  5. Step 5: Solve for x
    x = 1,114,959,248,198.64/885,795.60
  6. Step 6: Final answer
    x = 1,258,709.40

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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.