Home / 1,500,190-2,070,281.64-821,111.92

Finding the Fourth Proportional to 1,500,190, 2,070,281.64 and 821,111.92

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Solution

The fourth proportional to 1,500,190, 2,070,281.64 and 821,111.92 is: 1,133,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,190 : 2,070,281.64 = 821,111.92 : x
  2. Step 2: Convert to fraction form
    1,500,190/2,070,281.64 = 821,111.92/x
  3. Step 3: Cross multiply
    1,500,190x = 2,070,281.64 × 821,111.92
  4. Step 4: Simplify right side
    1,500,190x = 1,699,932,932,361.15
  5. Step 5: Solve for x
    x = 1,699,932,932,361.15/1,500,190
  6. Step 6: Final answer
    x = 1,133,145.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.