Home / 1,680,048.90-2,520,401.40-668,998.80

Finding the Fourth Proportional to 1,680,048.90, 2,520,401.40 and 668,998.80

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Solution

The fourth proportional to 1,680,048.90, 2,520,401.40 and 668,998.80 is: 1,003,628.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,680,048.90 : 2,520,401.40 = 668,998.80 : x
  2. Step 2: Convert to fraction form
    1,680,048.90/2,520,401.40 = 668,998.80/x
  3. Step 3: Cross multiply
    1,680,048.90x = 2,520,401.40 × 668,998.80
  4. Step 4: Simplify right side
    1,680,048.90x = 1,686,145,512,118.32
  5. Step 5: Solve for x
    x = 1,686,145,512,118.32/1,680,048.90
  6. Step 6: Final answer
    x = 1,003,628.83

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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.