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Finding the Fourth Proportional to 1,351,873, 1,865,586.42 and 842,575

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Solution

The fourth proportional to 1,351,873, 1,865,586.42 and 842,575 is: 1,162,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,873 : 1,865,586.42 = 842,575 : x
  2. Step 2: Convert to fraction form
    1,351,873/1,865,586.42 = 842,575/x
  3. Step 3: Cross multiply
    1,351,873x = 1,865,586.42 × 842,575
  4. Step 4: Simplify right side
    1,351,873x = 1,571,896,477,831.50
  5. Step 5: Solve for x
    x = 1,571,896,477,831.50/1,351,873
  6. Step 6: Final answer
    x = 1,162,754.55

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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.