Home / 520,001.37-780,002.06-140,922.08

Finding the Fourth Proportional to 520,001.37, 780,002.06 and 140,922.08

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Solution

The fourth proportional to 520,001.37, 780,002.06 and 140,922.08 is: 211,383.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,001.37 : 780,002.06 = 140,922.08 : x
  2. Step 2: Convert to fraction form
    520,001.37/780,002.06 = 140,922.08/x
  3. Step 3: Cross multiply
    520,001.37x = 780,002.06 × 140,922.08
  4. Step 4: Simplify right side
    520,001.37x = 109,919,511,019.87
  5. Step 5: Solve for x
    x = 109,919,511,019.87/520,001.37
  6. Step 6: Final answer
    x = 211,383.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.