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Finding the Fourth Proportional to 455,084.63, 628,017.06 and 253,880.63

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Solution

The fourth proportional to 455,084.63, 628,017.06 and 253,880.63 is: 350,355.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,084.63 : 628,017.06 = 253,880.63 : x
  2. Step 2: Convert to fraction form
    455,084.63/628,017.06 = 253,880.63/x
  3. Step 3: Cross multiply
    455,084.63x = 628,017.06 × 253,880.63
  4. Step 4: Simplify right side
    455,084.63x = 159,441,363,703.46
  5. Step 5: Solve for x
    x = 159,441,363,703.46/455,084.63
  6. Step 6: Final answer
    x = 350,355.42

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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.