Home / 885,405.60-1,326,140.10-685,076.40

Finding the Fourth Proportional to 885,405.60, 1,326,140.10 and 685,076.40

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Solution

The fourth proportional to 885,405.60, 1,326,140.10 and 685,076.40 is: 1,026,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,405.60 : 1,326,140.10 = 685,076.40 : x
  2. Step 2: Convert to fraction form
    885,405.60/1,326,140.10 = 685,076.40/x
  3. Step 3: Cross multiply
    885,405.60x = 1,326,140.10 × 685,076.40
  4. Step 4: Simplify right side
    885,405.60x = 908,507,285,603.64
  5. Step 5: Solve for x
    x = 908,507,285,603.64/885,405.60
  6. Step 6: Final answer
    x = 1,026,091.64

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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.