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Finding the Fourth Proportional to 445,056, 665,140.58 and 325,364.92

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Solution

The fourth proportional to 445,056, 665,140.58 and 325,364.92 is: 486,261.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,056 : 665,140.58 = 325,364.92 : x
  2. Step 2: Convert to fraction form
    445,056/665,140.58 = 325,364.92/x
  3. Step 3: Cross multiply
    445,056x = 665,140.58 × 325,364.92
  4. Step 4: Simplify right side
    445,056x = 216,413,411,600.45
  5. Step 5: Solve for x
    x = 216,413,411,600.45/445,056
  6. Step 6: Final answer
    x = 486,261.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.