Home / 685,734.66-1,028,766.15-286,153.11

Finding the Fourth Proportional to 685,734.66, 1,028,766.15 and 286,153.11

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Solution

The fourth proportional to 685,734.66, 1,028,766.15 and 286,153.11 is: 429,298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,734.66 : 1,028,766.15 = 286,153.11 : x
  2. Step 2: Convert to fraction form
    685,734.66/1,028,766.15 = 286,153.11/x
  3. Step 3: Cross multiply
    685,734.66x = 1,028,766.15 × 286,153.11
  4. Step 4: Simplify right side
    685,734.66x = 294,384,633,285.23
  5. Step 5: Solve for x
    x = 294,384,633,285.23/685,734.66
  6. Step 6: Final answer
    x = 429,298.17

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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.