Home / 1,686,615.30-2,529,922.95-978,464.70

Finding the Fourth Proportional to 1,686,615.30, 2,529,922.95 and 978,464.70

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Solution

The fourth proportional to 1,686,615.30, 2,529,922.95 and 978,464.70 is: 1,467,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,615.30 : 2,529,922.95 = 978,464.70 : x
  2. Step 2: Convert to fraction form
    1,686,615.30/2,529,922.95 = 978,464.70/x
  3. Step 3: Cross multiply
    1,686,615.30x = 2,529,922.95 × 978,464.70
  4. Step 4: Simplify right side
    1,686,615.30x = 2,475,440,300,294.87
  5. Step 5: Solve for x
    x = 2,475,440,300,294.87/1,686,615.30
  6. Step 6: Final answer
    x = 1,467,697.05

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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.