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Finding the Fourth Proportional to 635,314.32, 876,762.36 and 380,660.04

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Solution

The fourth proportional to 635,314.32, 876,762.36 and 380,660.04 is: 525,327.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,314.32 : 876,762.36 = 380,660.04 : x
  2. Step 2: Convert to fraction form
    635,314.32/876,762.36 = 380,660.04/x
  3. Step 3: Cross multiply
    635,314.32x = 876,762.36 × 380,660.04
  4. Step 4: Simplify right side
    635,314.32x = 333,748,395,028.09
  5. Step 5: Solve for x
    x = 333,748,395,028.09/635,314.32
  6. Step 6: Final answer
    x = 525,327.99

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1.5x scale

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.