Home / 1,778,358.42-2,667,544.45-430,518.83

Finding the Fourth Proportional to 1,778,358.42, 2,667,544.45 and 430,518.83

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Solution

The fourth proportional to 1,778,358.42, 2,667,544.45 and 430,518.83 is: 645,779.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,358.42 : 2,667,544.45 = 430,518.83 : x
  2. Step 2: Convert to fraction form
    1,778,358.42/2,667,544.45 = 430,518.83/x
  3. Step 3: Cross multiply
    1,778,358.42x = 2,667,544.45 × 430,518.83
  4. Step 4: Simplify right side
    1,778,358.42x = 1,148,428,101,172.97
  5. Step 5: Solve for x
    x = 1,148,428,101,172.97/1,778,358.42
  6. Step 6: Final answer
    x = 645,779.89

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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.