Home / 873,821.79-1,310,779.40-274,829.66

Finding the Fourth Proportional to 873,821.79, 1,310,779.40 and 274,829.66

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Solution

The fourth proportional to 873,821.79, 1,310,779.40 and 274,829.66 is: 412,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,821.79 : 1,310,779.40 = 274,829.66 : x
  2. Step 2: Convert to fraction form
    873,821.79/1,310,779.40 = 274,829.66/x
  3. Step 3: Cross multiply
    873,821.79x = 1,310,779.40 × 274,829.66
  4. Step 4: Simplify right side
    873,821.79x = 360,241,056,837.00
  5. Step 5: Solve for x
    x = 360,241,056,837.00/873,821.79
  6. Step 6: Final answer
    x = 412,259.18

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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.