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Finding the Fourth Proportional to 630,310.07, 869,822.35 and 343,824.01

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Solution

The fourth proportional to 630,310.07, 869,822.35 and 343,824.01 is: 474,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,310.07 : 869,822.35 = 343,824.01 : x
  2. Step 2: Convert to fraction form
    630,310.07/869,822.35 = 343,824.01/x
  3. Step 3: Cross multiply
    630,310.07x = 869,822.35 × 343,824.01
  4. Step 4: Simplify right side
    630,310.07x = 299,065,805,330.51
  5. Step 5: Solve for x
    x = 299,065,805,330.51/630,310.07
  6. Step 6: Final answer
    x = 474,474.10

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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.