Home / 830,015.20-1,243,273.20-690,047.20

Finding the Fourth Proportional to 830,015.20, 1,243,273.20 and 690,047.20

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Solution

The fourth proportional to 830,015.20, 1,243,273.20 and 690,047.20 is: 1,033,616.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,015.20 : 1,243,273.20 = 690,047.20 : x
  2. Step 2: Convert to fraction form
    830,015.20/1,243,273.20 = 690,047.20/x
  3. Step 3: Cross multiply
    830,015.20x = 1,243,273.20 × 690,047.20
  4. Step 4: Simplify right side
    830,015.20x = 857,917,190,495.04
  5. Step 5: Solve for x
    x = 857,917,190,495.04/830,015.20
  6. Step 6: Final answer
    x = 1,033,616.24

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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.