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Finding the Fourth Proportional to 633,872.05, 874,746.75 and 343,483.73

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Solution

The fourth proportional to 633,872.05, 874,746.75 and 343,483.73 is: 474,009.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,872.05 : 874,746.75 = 343,483.73 : x
  2. Step 2: Convert to fraction form
    633,872.05/874,746.75 = 343,483.73/x
  3. Step 3: Cross multiply
    633,872.05x = 874,746.75 × 343,483.73
  4. Step 4: Simplify right side
    633,872.05x = 300,461,276,495.38
  5. Step 5: Solve for x
    x = 300,461,276,495.38/633,872.05
  6. Step 6: Final answer
    x = 474,009.35

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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.