Home / 830,048.10-1,245,072.15-682,425.60

Finding the Fourth Proportional to 830,048.10, 1,245,072.15 and 682,425.60

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Solution

The fourth proportional to 830,048.10, 1,245,072.15 and 682,425.60 is: 1,023,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,048.10 : 1,245,072.15 = 682,425.60 : x
  2. Step 2: Convert to fraction form
    830,048.10/1,245,072.15 = 682,425.60/x
  3. Step 3: Cross multiply
    830,048.10x = 1,245,072.15 × 682,425.60
  4. Step 4: Simplify right side
    830,048.10x = 849,669,109,007.04
  5. Step 5: Solve for x
    x = 849,669,109,007.04/830,048.10
  6. Step 6: Final answer
    x = 1,023,638.40

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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.