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Finding the Fourth Proportional to 511,426.95, 705,597.82 and 330,261.34

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Solution

The fourth proportional to 511,426.95, 705,597.82 and 330,261.34 is: 455,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,426.95 : 705,597.82 = 330,261.34 : x
  2. Step 2: Convert to fraction form
    511,426.95/705,597.82 = 330,261.34/x
  3. Step 3: Cross multiply
    511,426.95x = 705,597.82 × 330,261.34
  4. Step 4: Simplify right side
    511,426.95x = 233,031,681,534.28
  5. Step 5: Solve for x
    x = 233,031,681,534.28/511,426.95
  6. Step 6: Final answer
    x = 455,649.98

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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.