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Finding the Fourth Proportional to 478,018.64, 658,242.96 and 467,410.32

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Solution

The fourth proportional to 478,018.64, 658,242.96 and 467,410.32 is: 643,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,018.64 : 658,242.96 = 467,410.32 : x
  2. Step 2: Convert to fraction form
    478,018.64/658,242.96 = 467,410.32/x
  3. Step 3: Cross multiply
    478,018.64x = 658,242.96 × 467,410.32
  4. Step 4: Simplify right side
    478,018.64x = 307,669,552,571.35
  5. Step 5: Solve for x
    x = 307,669,552,571.35/478,018.64
  6. Step 6: Final answer
    x = 643,635.05

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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.