Home / 1,430,121-2,145,181.50-531,788.88

Finding the Fourth Proportional to 1,430,121, 2,145,181.50 and 531,788.88

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Solution

The fourth proportional to 1,430,121, 2,145,181.50 and 531,788.88 is: 797,683.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,121 : 2,145,181.50 = 531,788.88 : x
  2. Step 2: Convert to fraction form
    1,430,121/2,145,181.50 = 531,788.88/x
  3. Step 3: Cross multiply
    1,430,121x = 2,145,181.50 × 531,788.88
  4. Step 4: Simplify right side
    1,430,121x = 1,140,783,667,281.72
  5. Step 5: Solve for x
    x = 1,140,783,667,281.72/1,430,121
  6. Step 6: Final answer
    x = 797,683.32

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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.