Home / 1,689,440.75-2,533,631.23-551,943.78

Finding the Fourth Proportional to 1,689,440.75, 2,533,631.23 and 551,943.78

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Solution

The fourth proportional to 1,689,440.75, 2,533,631.23 and 551,943.78 is: 827,742.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,440.75 : 2,533,631.23 = 551,943.78 : x
  2. Step 2: Convert to fraction form
    1,689,440.75/2,533,631.23 = 551,943.78/x
  3. Step 3: Cross multiply
    1,689,440.75x = 2,533,631.23 × 551,943.78
  4. Step 4: Simplify right side
    1,689,440.75x = 1,398,421,989,401.06
  5. Step 5: Solve for x
    x = 1,398,421,989,401.06/1,689,440.75
  6. Step 6: Final answer
    x = 827,742.55

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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.