Home / 1,429,913.21-2,145,165.26-419,068.31

Finding the Fourth Proportional to 1,429,913.21, 2,145,165.26 and 419,068.31

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Solution

The fourth proportional to 1,429,913.21, 2,145,165.26 and 419,068.31 is: 628,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,913.21 : 2,145,165.26 = 419,068.31 : x
  2. Step 2: Convert to fraction form
    1,429,913.21/2,145,165.26 = 419,068.31/x
  3. Step 3: Cross multiply
    1,429,913.21x = 2,145,165.26 × 419,068.31
  4. Step 4: Simplify right side
    1,429,913.21x = 898,970,767,357.74
  5. Step 5: Solve for x
    x = 898,970,767,357.74/1,429,913.21
  6. Step 6: Final answer
    x = 628,689.05

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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.