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Finding the Fourth Proportional to 651,231.82, 976,325.95 and 309,503.62

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Solution

The fourth proportional to 651,231.82, 976,325.95 and 309,503.62 is: 464,007.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,231.82 : 976,325.95 = 309,503.62 : x
  2. Step 2: Convert to fraction form
    651,231.82/976,325.95 = 309,503.62/x
  3. Step 3: Cross multiply
    651,231.82x = 976,325.95 × 309,503.62
  4. Step 4: Simplify right side
    651,231.82x = 302,176,415,824.94
  5. Step 5: Solve for x
    x = 302,176,415,824.94/651,231.82
  6. Step 6: Final answer
    x = 464,007.45

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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.