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Finding the Fourth Proportional to 511,254.72, 705,907.08 and 330,072.48

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Solution

The fourth proportional to 511,254.72, 705,907.08 and 330,072.48 is: 455,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,254.72 : 705,907.08 = 330,072.48 : x
  2. Step 2: Convert to fraction form
    511,254.72/705,907.08 = 330,072.48/x
  3. Step 3: Cross multiply
    511,254.72x = 705,907.08 × 330,072.48
  4. Step 4: Simplify right side
    511,254.72x = 233,000,500,545.16
  5. Step 5: Solve for x
    x = 233,000,500,545.16/511,254.72
  6. Step 6: Final answer
    x = 455,742.49

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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.