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Finding the Fourth Proportional to 630,301.88, 869,822.89 and 343,827.97

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Solution

The fourth proportional to 630,301.88, 869,822.89 and 343,827.97 is: 474,486.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,301.88 : 869,822.89 = 343,827.97 : x
  2. Step 2: Convert to fraction form
    630,301.88/869,822.89 = 343,827.97/x
  3. Step 3: Cross multiply
    630,301.88x = 869,822.89 × 343,827.97
  4. Step 4: Simplify right side
    630,301.88x = 299,069,435,494.11
  5. Step 5: Solve for x
    x = 299,069,435,494.11/630,301.88
  6. Step 6: Final answer
    x = 474,486.03

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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.