Home / 1,431,655-2,147,495.46-434,383

Finding the Fourth Proportional to 1,431,655, 2,147,495.46 and 434,383

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Solution

The fourth proportional to 1,431,655, 2,147,495.46 and 434,383 is: 651,578.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,655 : 2,147,495.46 = 434,383 : x
  2. Step 2: Convert to fraction form
    1,431,655/2,147,495.46 = 434,383/x
  3. Step 3: Cross multiply
    1,431,655x = 2,147,495.46 × 434,383
  4. Step 4: Simplify right side
    1,431,655x = 932,835,520,401.18
  5. Step 5: Solve for x
    x = 932,835,520,401.18/1,431,655
  6. Step 6: Final answer
    x = 651,578.43

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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.