Home / 1,123,360.20-1,685,040.30-698,207.40

Finding the Fourth Proportional to 1,123,360.20, 1,685,040.30 and 698,207.40

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Solution

The fourth proportional to 1,123,360.20, 1,685,040.30 and 698,207.40 is: 1,047,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,360.20 : 1,685,040.30 = 698,207.40 : x
  2. Step 2: Convert to fraction form
    1,123,360.20/1,685,040.30 = 698,207.40/x
  3. Step 3: Cross multiply
    1,123,360.20x = 1,685,040.30 × 698,207.40
  4. Step 4: Simplify right side
    1,123,360.20x = 1,176,507,606,758.22
  5. Step 5: Solve for x
    x = 1,176,507,606,758.22/1,123,360.20
  6. Step 6: Final answer
    x = 1,047,311.10

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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.