Home / 1,687,263.18-2,328,423.31-923,316.78

Finding the Fourth Proportional to 1,687,263.18, 2,328,423.31 and 923,316.78

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Solution

The fourth proportional to 1,687,263.18, 2,328,423.31 and 923,316.78 is: 1,274,177.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,263.18 : 2,328,423.31 = 923,316.78 : x
  2. Step 2: Convert to fraction form
    1,687,263.18/2,328,423.31 = 923,316.78/x
  3. Step 3: Cross multiply
    1,687,263.18x = 2,328,423.31 × 923,316.78
  4. Step 4: Simplify right side
    1,687,263.18x = 2,149,872,313,066.14
  5. Step 5: Solve for x
    x = 2,149,872,313,066.14/1,687,263.18
  6. Step 6: Final answer
    x = 1,274,177.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.