Home / 830,013.80-1,245,020.70-823,015.40

Finding the Fourth Proportional to 830,013.80, 1,245,020.70 and 823,015.40

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Solution

The fourth proportional to 830,013.80, 1,245,020.70 and 823,015.40 is: 1,234,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,013.80 : 1,245,020.70 = 823,015.40 : x
  2. Step 2: Convert to fraction form
    830,013.80/1,245,020.70 = 823,015.40/x
  3. Step 3: Cross multiply
    830,013.80x = 1,245,020.70 × 823,015.40
  4. Step 4: Simplify right side
    830,013.80x = 1,024,671,209,418.78
  5. Step 5: Solve for x
    x = 1,024,671,209,418.78/830,013.80
  6. Step 6: Final answer
    x = 1,234,523.10

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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.