Home / 1,495,161.90-2,243,086.29-430,212.78

Finding the Fourth Proportional to 1,495,161.90, 2,243,086.29 and 430,212.78

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Solution

The fourth proportional to 1,495,161.90, 2,243,086.29 and 430,212.78 is: 645,417.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,495,161.90 : 2,243,086.29 = 430,212.78 : x
  2. Step 2: Convert to fraction form
    1,495,161.90/2,243,086.29 = 430,212.78/x
  3. Step 3: Cross multiply
    1,495,161.90x = 2,243,086.29 × 430,212.78
  4. Step 4: Simplify right side
    1,495,161.90x = 965,004,388,600.79
  5. Step 5: Solve for x
    x = 965,004,388,600.79/1,495,161.90
  6. Step 6: Final answer
    x = 645,417.99

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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.