Home / 873,610.40-1,310,415.60-518,441.60

Finding the Fourth Proportional to 873,610.40, 1,310,415.60 and 518,441.60

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Solution

The fourth proportional to 873,610.40, 1,310,415.60 and 518,441.60 is: 777,662.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,610.40 : 1,310,415.60 = 518,441.60 : x
  2. Step 2: Convert to fraction form
    873,610.40/1,310,415.60 = 518,441.60/x
  3. Step 3: Cross multiply
    873,610.40x = 1,310,415.60 × 518,441.60
  4. Step 4: Simplify right side
    873,610.40x = 679,373,960,328.96
  5. Step 5: Solve for x
    x = 679,373,960,328.96/873,610.40
  6. Step 6: Final answer
    x = 777,662.40

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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.