Home / 1,429,864.38-2,145,091.75-419,019.30

Finding the Fourth Proportional to 1,429,864.38, 2,145,091.75 and 419,019.30

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Solution

The fourth proportional to 1,429,864.38, 2,145,091.75 and 419,019.30 is: 628,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,864.38 : 2,145,091.75 = 419,019.30 : x
  2. Step 2: Convert to fraction form
    1,429,864.38/2,145,091.75 = 419,019.30/x
  3. Step 3: Cross multiply
    1,429,864.38x = 2,145,091.75 × 419,019.30
  4. Step 4: Simplify right side
    1,429,864.38x = 898,834,842,473.23
  5. Step 5: Solve for x
    x = 898,834,842,473.23/1,429,864.38
  6. Step 6: Final answer
    x = 628,615.45

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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.