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Finding the Fourth Proportional to 554,203.46, 764,800.35 and 299,554.65

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Solution

The fourth proportional to 554,203.46, 764,800.35 and 299,554.65 is: 413,385.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,203.46 : 764,800.35 = 299,554.65 : x
  2. Step 2: Convert to fraction form
    554,203.46/764,800.35 = 299,554.65/x
  3. Step 3: Cross multiply
    554,203.46x = 764,800.35 × 299,554.65
  4. Step 4: Simplify right side
    554,203.46x = 229,099,495,842.35
  5. Step 5: Solve for x
    x = 229,099,495,842.35/554,203.46
  6. Step 6: Final answer
    x = 413,385.18

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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.