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Finding the Fourth Proportional to 585,272.85, 807,742.08 and 330,640.44

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Solution

The fourth proportional to 585,272.85, 807,742.08 and 330,640.44 is: 456,320.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,272.85 : 807,742.08 = 330,640.44 : x
  2. Step 2: Convert to fraction form
    585,272.85/807,742.08 = 330,640.44/x
  3. Step 3: Cross multiply
    585,272.85x = 807,742.08 × 330,640.44
  4. Step 4: Simplify right side
    585,272.85x = 267,072,196,737.72
  5. Step 5: Solve for x
    x = 267,072,196,737.72/585,272.85
  6. Step 6: Final answer
    x = 456,320.84

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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.