Home / 893,631.55-1,233,219.79-485,734.35

Finding the Fourth Proportional to 893,631.55, 1,233,219.79 and 485,734.35

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Solution

The fourth proportional to 893,631.55, 1,233,219.79 and 485,734.35 is: 670,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,631.55 : 1,233,219.79 = 485,734.35 : x
  2. Step 2: Convert to fraction form
    893,631.55/1,233,219.79 = 485,734.35/x
  3. Step 3: Cross multiply
    893,631.55x = 1,233,219.79 × 485,734.35
  4. Step 4: Simplify right side
    893,631.55x = 599,017,213,102.79
  5. Step 5: Solve for x
    x = 599,017,213,102.79/893,631.55
  6. Step 6: Final answer
    x = 670,317.89

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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.