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Finding the Fourth Proportional to 615,450.50, 849,339.22 and 343,512.77

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Solution

The fourth proportional to 615,450.50, 849,339.22 and 343,512.77 is: 474,057.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,450.50 : 849,339.22 = 343,512.77 : x
  2. Step 2: Convert to fraction form
    615,450.50/849,339.22 = 343,512.77/x
  3. Step 3: Cross multiply
    615,450.50x = 849,339.22 × 343,512.77
  4. Step 4: Simplify right side
    615,450.50x = 291,758,870,836.76
  5. Step 5: Solve for x
    x = 291,758,870,836.76/615,450.50
  6. Step 6: Final answer
    x = 474,057.41

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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.