Home / 320,464.02-480,695.40-120,829.18

Finding the Fourth Proportional to 320,464.02, 480,695.40 and 120,829.18

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Solution

The fourth proportional to 320,464.02, 480,695.40 and 120,829.18 is: 181,243.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,464.02 : 480,695.40 = 120,829.18 : x
  2. Step 2: Convert to fraction form
    320,464.02/480,695.40 = 120,829.18/x
  3. Step 3: Cross multiply
    320,464.02x = 480,695.40 × 120,829.18
  4. Step 4: Simplify right side
    320,464.02x = 58,082,031,011.77
  5. Step 5: Solve for x
    x = 58,082,031,011.77/320,464.02
  6. Step 6: Final answer
    x = 181,243.53

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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.