Home / 520,731.12-780,815.70-236,266.44

Finding the Fourth Proportional to 520,731.12, 780,815.70 and 236,266.44

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Solution

The fourth proportional to 520,731.12, 780,815.70 and 236,266.44 is: 354,272.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,731.12 : 780,815.70 = 236,266.44 : x
  2. Step 2: Convert to fraction form
    520,731.12/780,815.70 = 236,266.44/x
  3. Step 3: Cross multiply
    520,731.12x = 780,815.70 × 236,266.44
  4. Step 4: Simplify right side
    520,731.12x = 184,480,545,735.11
  5. Step 5: Solve for x
    x = 184,480,545,735.11/520,731.12
  6. Step 6: Final answer
    x = 354,272.17

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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.