Home / 511,497.02-705,742.45-330,170.12

Finding the Fourth Proportional to 511,497.02, 705,742.45 and 330,170.12

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Solution

The fourth proportional to 511,497.02, 705,742.45 and 330,170.12 is: 455,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,497.02 : 705,742.45 = 330,170.12 : x
  2. Step 2: Convert to fraction form
    511,497.02/705,742.45 = 330,170.12/x
  3. Step 3: Cross multiply
    511,497.02x = 705,742.45 × 330,170.12
  4. Step 4: Simplify right side
    511,497.02x = 233,015,069,555.20
  5. Step 5: Solve for x
    x = 233,015,069,555.20/511,497.02
  6. Step 6: Final answer
    x = 455,555.08

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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.