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Finding the Fourth Proportional to 630,329.34, 869,866.83 and 343,860.06

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Solution

The fourth proportional to 630,329.34, 869,866.83 and 343,860.06 is: 474,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,329.34 : 869,866.83 = 343,860.06 : x
  2. Step 2: Convert to fraction form
    630,329.34/869,866.83 = 343,860.06/x
  3. Step 3: Cross multiply
    630,329.34x = 869,866.83 × 343,860.06
  4. Step 4: Simplify right side
    630,329.34x = 299,112,460,355.81
  5. Step 5: Solve for x
    x = 299,112,460,355.81/630,329.34
  6. Step 6: Final answer
    x = 474,533.62

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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.