Home / 864,080.40-1,293,852.60-609,988.80

Finding the Fourth Proportional to 864,080.40, 1,293,852.60 and 609,988.80

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Solution

The fourth proportional to 864,080.40, 1,293,852.60 and 609,988.80 is: 913,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,080.40 : 1,293,852.60 = 609,988.80 : x
  2. Step 2: Convert to fraction form
    864,080.40/1,293,852.60 = 609,988.80/x
  3. Step 3: Cross multiply
    864,080.40x = 1,293,852.60 × 609,988.80
  4. Step 4: Simplify right side
    864,080.40x = 789,235,594,850.88
  5. Step 5: Solve for x
    x = 789,235,594,850.88/864,080.40
  6. Step 6: Final answer
    x = 913,382.13

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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.