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Finding the Fourth Proportional to 624,972.96, 937,503.59 and 309,345.12

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Solution

The fourth proportional to 624,972.96, 937,503.59 and 309,345.12 is: 464,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,972.96 : 937,503.59 = 309,345.12 : x
  2. Step 2: Convert to fraction form
    624,972.96/937,503.59 = 309,345.12/x
  3. Step 3: Cross multiply
    624,972.96x = 937,503.59 × 309,345.12
  4. Step 4: Simplify right side
    624,972.96x = 290,012,160,548.98
  5. Step 5: Solve for x
    x = 290,012,160,548.98/624,972.96
  6. Step 6: Final answer
    x = 464,039.53

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.