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Finding the Fourth Proportional to 671,138.40, 925,697.52 and 456,152.16

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Solution

The fourth proportional to 671,138.40, 925,697.52 and 456,152.16 is: 629,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,138.40 : 925,697.52 = 456,152.16 : x
  2. Step 2: Convert to fraction form
    671,138.40/925,697.52 = 456,152.16/x
  3. Step 3: Cross multiply
    671,138.40x = 925,697.52 × 456,152.16
  4. Step 4: Simplify right side
    671,138.40x = 422,258,923,254.64
  5. Step 5: Solve for x
    x = 422,258,923,254.64/671,138.40
  6. Step 6: Final answer
    x = 629,168.18

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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.