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Finding the Fourth Proportional to 630,291.01, 869,807.15 and 343,812.37

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Solution

The fourth proportional to 630,291.01, 869,807.15 and 343,812.37 is: 474,464.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,291.01 : 869,807.15 = 343,812.37 : x
  2. Step 2: Convert to fraction form
    630,291.01/869,807.15 = 343,812.37/x
  3. Step 3: Cross multiply
    630,291.01x = 869,807.15 × 343,812.37
  4. Step 4: Simplify right side
    630,291.01x = 299,050,457,684.45
  5. Step 5: Solve for x
    x = 299,050,457,684.45/630,291.01
  6. Step 6: Final answer
    x = 474,464.10

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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.