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Finding the Fourth Proportional to 511,427.95, 705,599.20 and 330,262.34

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Solution

The fourth proportional to 511,427.95, 705,599.20 and 330,262.34 is: 455,651.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,427.95 : 705,599.20 = 330,262.34 : x
  2. Step 2: Convert to fraction form
    511,427.95/705,599.20 = 330,262.34/x
  3. Step 3: Cross multiply
    511,427.95x = 705,599.20 × 330,262.34
  4. Step 4: Simplify right side
    511,427.95x = 233,032,842,894.13
  5. Step 5: Solve for x
    x = 233,032,842,894.13/511,427.95
  6. Step 6: Final answer
    x = 455,651.36

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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.