Home / 612,824.40-845,677.44-340,884.72

Finding the Fourth Proportional to 612,824.40, 845,677.44 and 340,884.72

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Solution

The fourth proportional to 612,824.40, 845,677.44 and 340,884.72 is: 470,409.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,824.40 : 845,677.44 = 340,884.72 : x
  2. Step 2: Convert to fraction form
    612,824.40/845,677.44 = 340,884.72/x
  3. Step 3: Cross multiply
    612,824.40x = 845,677.44 × 340,884.72
  4. Step 4: Simplify right side
    612,824.40x = 288,278,517,344.72
  5. Step 5: Solve for x
    x = 288,278,517,344.72/612,824.40
  6. Step 6: Final answer
    x = 470,409.66

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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.