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Finding the Fourth Proportional to 851,509.92, 1,277,264.88 and 346,345.73

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Solution

The fourth proportional to 851,509.92, 1,277,264.88 and 346,345.73 is: 519,518.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,509.92 : 1,277,264.88 = 346,345.73 : x
  2. Step 2: Convert to fraction form
    851,509.92/1,277,264.88 = 346,345.73/x
  3. Step 3: Cross multiply
    851,509.92x = 1,277,264.88 × 346,345.73
  4. Step 4: Simplify right side
    851,509.92x = 442,375,230,880.64
  5. Step 5: Solve for x
    x = 442,375,230,880.64/851,509.92
  6. Step 6: Final answer
    x = 519,518.59

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.