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Finding the Fourth Proportional to 635,636.85, 877,185.29 and 345,254.08

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Solution

The fourth proportional to 635,636.85, 877,185.29 and 345,254.08 is: 476,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,636.85 : 877,185.29 = 345,254.08 : x
  2. Step 2: Convert to fraction form
    635,636.85/877,185.29 = 345,254.08/x
  3. Step 3: Cross multiply
    635,636.85x = 877,185.29 × 345,254.08
  4. Step 4: Simplify right side
    635,636.85x = 302,851,798,562.21
  5. Step 5: Solve for x
    x = 302,851,798,562.21/635,636.85
  6. Step 6: Final answer
    x = 476,454.13

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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.