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Finding the Fourth Proportional to 635,121.61, 875,259.64 and 623,449.63

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Solution

The fourth proportional to 635,121.61, 875,259.64 and 623,449.63 is: 859,174.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,121.61 : 875,259.64 = 623,449.63 : x
  2. Step 2: Convert to fraction form
    635,121.61/875,259.64 = 623,449.63/x
  3. Step 3: Cross multiply
    635,121.61x = 875,259.64 × 623,449.63
  4. Step 4: Simplify right side
    635,121.61x = 545,680,298,711.93
  5. Step 5: Solve for x
    x = 545,680,298,711.93/635,121.61
  6. Step 6: Final answer
    x = 859,174.51

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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.