Home / 1,419,015.40-2,129,559.90-999,111.40

Finding the Fourth Proportional to 1,419,015.40, 2,129,559.90 and 999,111.40

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Solution

The fourth proportional to 1,419,015.40, 2,129,559.90 and 999,111.40 is: 1,499,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,015.40 : 2,129,559.90 = 999,111.40 : x
  2. Step 2: Convert to fraction form
    1,419,015.40/2,129,559.90 = 999,111.40/x
  3. Step 3: Cross multiply
    1,419,015.40x = 2,129,559.90 × 999,111.40
  4. Step 4: Simplify right side
    1,419,015.40x = 2,127,667,573,072.86
  5. Step 5: Solve for x
    x = 2,127,667,573,072.86/1,419,015.40
  6. Step 6: Final answer
    x = 1,499,397.10

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1.5x scale

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.