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Finding the Fourth Proportional to 451,751.16, 623,436.14 and 270,428

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Solution

The fourth proportional to 451,751.16, 623,436.14 and 270,428 is: 373,202.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,751.16 : 623,436.14 = 270,428 : x
  2. Step 2: Convert to fraction form
    451,751.16/623,436.14 = 270,428/x
  3. Step 3: Cross multiply
    451,751.16x = 623,436.14 × 270,428
  4. Step 4: Simplify right side
    451,751.16x = 168,594,588,467.92
  5. Step 5: Solve for x
    x = 168,594,588,467.92/451,751.16
  6. Step 6: Final answer
    x = 373,202.34

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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.