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Finding the Fourth Proportional to 635,710.95, 877,276.89 and 345,319.88

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Solution

The fourth proportional to 635,710.95, 877,276.89 and 345,319.88 is: 476,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,710.95 : 877,276.89 = 345,319.88 : x
  2. Step 2: Convert to fraction form
    635,710.95/877,276.89 = 345,319.88/x
  3. Step 3: Cross multiply
    635,710.95x = 877,276.89 × 345,319.88
  4. Step 4: Simplify right side
    635,710.95x = 302,941,145,995.19
  5. Step 5: Solve for x
    x = 302,941,145,995.19/635,710.95
  6. Step 6: Final answer
    x = 476,539.13

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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.