Home / 1,401,644.41-2,099,412.86-921,330

Finding the Fourth Proportional to 1,401,644.41, 2,099,412.86 and 921,330

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Solution

The fourth proportional to 1,401,644.41, 2,099,412.86 and 921,330 is: 1,379,987.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401,644.41 : 2,099,412.86 = 921,330 : x
  2. Step 2: Convert to fraction form
    1,401,644.41/2,099,412.86 = 921,330/x
  3. Step 3: Cross multiply
    1,401,644.41x = 2,099,412.86 × 921,330
  4. Step 4: Simplify right side
    1,401,644.41x = 1,934,252,050,303.80
  5. Step 5: Solve for x
    x = 1,934,252,050,303.80/1,401,644.41
  6. Step 6: Final answer
    x = 1,379,987.70

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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.