Home / 1,778,308.70-2,667,470.05-430,469.14

Finding the Fourth Proportional to 1,778,308.70, 2,667,470.05 and 430,469.14

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Solution

The fourth proportional to 1,778,308.70, 2,667,470.05 and 430,469.14 is: 645,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,778,308.70 : 2,667,470.05 = 430,469.14 : x
  2. Step 2: Convert to fraction form
    1,778,308.70/2,667,470.05 = 430,469.14/x
  3. Step 3: Cross multiply
    1,778,308.70x = 2,667,470.05 × 430,469.14
  4. Step 4: Simplify right side
    1,778,308.70x = 1,148,263,537,270.17
  5. Step 5: Solve for x
    x = 1,148,263,537,270.17/1,778,308.70
  6. Step 6: Final answer
    x = 645,705.40

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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.