Home / 1,292,009.89-1,937,867.21-345,454.42

Finding the Fourth Proportional to 1,292,009.89, 1,937,867.21 and 345,454.42

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Solution

The fourth proportional to 1,292,009.89, 1,937,867.21 and 345,454.42 is: 518,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,009.89 : 1,937,867.21 = 345,454.42 : x
  2. Step 2: Convert to fraction form
    1,292,009.89/1,937,867.21 = 345,454.42/x
  3. Step 3: Cross multiply
    1,292,009.89x = 1,937,867.21 × 345,454.42
  4. Step 4: Simplify right side
    1,292,009.89x = 669,444,792,396.17
  5. Step 5: Solve for x
    x = 669,444,792,396.17/1,292,009.89
  6. Step 6: Final answer
    x = 518,142.16

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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.