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Finding the Fourth Proportional to 612,459.99, 845,233.07 and 340,588.71

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Solution

The fourth proportional to 612,459.99, 845,233.07 and 340,588.71 is: 470,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,459.99 : 845,233.07 = 340,588.71 : x
  2. Step 2: Convert to fraction form
    612,459.99/845,233.07 = 340,588.71/x
  3. Step 3: Cross multiply
    612,459.99x = 845,233.07 × 340,588.71
  4. Step 4: Simplify right side
    612,459.99x = 287,876,839,257.70
  5. Step 5: Solve for x
    x = 287,876,839,257.70/612,459.99
  6. Step 6: Final answer
    x = 470,033.71

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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.