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Finding the Fourth Proportional to 909,415, 1,364,319.06 and 348,450.04

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Solution

The fourth proportional to 909,415, 1,364,319.06 and 348,450.04 is: 522,750.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,415 : 1,364,319.06 = 348,450.04 : x
  2. Step 2: Convert to fraction form
    909,415/1,364,319.06 = 348,450.04/x
  3. Step 3: Cross multiply
    909,415x = 1,364,319.06 × 348,450.04
  4. Step 4: Simplify right side
    909,415x = 475,397,031,029.76
  5. Step 5: Solve for x
    x = 475,397,031,029.76/909,415
  6. Step 6: Final answer
    x = 522,750.37

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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.