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Finding the Fourth Proportional to 451,732, 623,503.44 and 306,783.04

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Solution

The fourth proportional to 451,732, 623,503.44 and 306,783.04 is: 423,437.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,732 : 623,503.44 = 306,783.04 : x
  2. Step 2: Convert to fraction form
    451,732/623,503.44 = 306,783.04/x
  3. Step 3: Cross multiply
    451,732x = 623,503.44 × 306,783.04
  4. Step 4: Simplify right side
    451,732x = 191,280,280,773.66
  5. Step 5: Solve for x
    x = 191,280,280,773.66/451,732
  6. Step 6: Final answer
    x = 423,437.53

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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.