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Finding the Fourth Proportional to 630,341.94, 869,870.66 and 343,861.94

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Solution

The fourth proportional to 630,341.94, 869,870.66 and 343,861.94 is: 474,528.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,341.94 : 869,870.66 = 343,861.94 : x
  2. Step 2: Convert to fraction form
    630,341.94/869,870.66 = 343,861.94/x
  3. Step 3: Cross multiply
    630,341.94x = 869,870.66 × 343,861.94
  4. Step 4: Simplify right side
    630,341.94x = 299,115,412,696.68
  5. Step 5: Solve for x
    x = 299,115,412,696.68/630,341.94
  6. Step 6: Final answer
    x = 474,528.81

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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.