Home / 1,125,942.10-1,686,616.80-698,164.90

Finding the Fourth Proportional to 1,125,942.10, 1,686,616.80 and 698,164.90

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Solution

The fourth proportional to 1,125,942.10, 1,686,616.80 and 698,164.90 is: 1,045,823.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,942.10 : 1,686,616.80 = 698,164.90 : x
  2. Step 2: Convert to fraction form
    1,125,942.10/1,686,616.80 = 698,164.90/x
  3. Step 3: Cross multiply
    1,125,942.10x = 1,686,616.80 × 698,164.90
  4. Step 4: Simplify right side
    1,125,942.10x = 1,177,536,649,510.32
  5. Step 5: Solve for x
    x = 1,177,536,649,510.32/1,125,942.10
  6. Step 6: Final answer
    x = 1,045,823.45

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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.