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Finding the Fourth Proportional to 635,696.23, 877,276.61 and 345,307.71

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Solution

The fourth proportional to 635,696.23, 877,276.61 and 345,307.71 is: 476,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,696.23 : 877,276.61 = 345,307.71 : x
  2. Step 2: Convert to fraction form
    635,696.23/877,276.61 = 345,307.71/x
  3. Step 3: Cross multiply
    635,696.23x = 877,276.61 × 345,307.71
  4. Step 4: Simplify right side
    635,696.23x = 302,930,376,615.90
  5. Step 5: Solve for x
    x = 302,930,376,615.90/635,696.23
  6. Step 6: Final answer
    x = 476,533.23

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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.