Home / 685,542.23-1,028,409.02-286,091.44

Finding the Fourth Proportional to 685,542.23, 1,028,409.02 and 286,091.44

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Solution

The fourth proportional to 685,542.23, 1,028,409.02 and 286,091.44 is: 429,177.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,542.23 : 1,028,409.02 = 286,091.44 : x
  2. Step 2: Convert to fraction form
    685,542.23/1,028,409.02 = 286,091.44/x
  3. Step 3: Cross multiply
    685,542.23x = 1,028,409.02 × 286,091.44
  4. Step 4: Simplify right side
    685,542.23x = 294,219,012,298.74
  5. Step 5: Solve for x
    x = 294,219,012,298.74/685,542.23
  6. Step 6: Final answer
    x = 429,177.08

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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.