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Finding the Fourth Proportional to 478,880.57, 660,859.70 and 264,028.34

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Solution

The fourth proportional to 478,880.57, 660,859.70 and 264,028.34 is: 364,361.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,880.57 : 660,859.70 = 264,028.34 : x
  2. Step 2: Convert to fraction form
    478,880.57/660,859.70 = 264,028.34/x
  3. Step 3: Cross multiply
    478,880.57x = 660,859.70 × 264,028.34
  4. Step 4: Simplify right side
    478,880.57x = 174,485,689,895.91
  5. Step 5: Solve for x
    x = 174,485,689,895.91/478,880.57
  6. Step 6: Final answer
    x = 364,361.60

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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.