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Finding the Fourth Proportional to 612,459.74, 845,232.72 and 340,588.46

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Solution

The fourth proportional to 612,459.74, 845,232.72 and 340,588.46 is: 470,033.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,459.74 : 845,232.72 = 340,588.46 : x
  2. Step 2: Convert to fraction form
    612,459.74/845,232.72 = 340,588.46/x
  3. Step 3: Cross multiply
    612,459.74x = 845,232.72 × 340,588.46
  4. Step 4: Simplify right side
    612,459.74x = 287,876,510,446.41
  5. Step 5: Solve for x
    x = 287,876,510,446.41/612,459.74
  6. Step 6: Final answer
    x = 470,033.36

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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.