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Finding the Fourth Proportional to 617,293.40, 851,897.97 and 345,345.07

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Solution

The fourth proportional to 617,293.40, 851,897.97 and 345,345.07 is: 476,594.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,293.40 : 851,897.97 = 345,345.07 : x
  2. Step 2: Convert to fraction form
    617,293.40/851,897.97 = 345,345.07/x
  3. Step 3: Cross multiply
    617,293.40x = 851,897.97 × 345,345.07
  4. Step 4: Simplify right side
    617,293.40x = 294,198,762,384.44
  5. Step 5: Solve for x
    x = 294,198,762,384.44/617,293.40
  6. Step 6: Final answer
    x = 476,594.70

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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.