Home / 457,086.40-630,835.62-275,902.36

Finding the Fourth Proportional to 457,086.40, 630,835.62 and 275,902.36

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Solution

The fourth proportional to 457,086.40, 630,835.62 and 275,902.36 is: 380,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,086.40 : 630,835.62 = 275,902.36 : x
  2. Step 2: Convert to fraction form
    457,086.40/630,835.62 = 275,902.36/x
  3. Step 3: Cross multiply
    457,086.40x = 630,835.62 × 275,902.36
  4. Step 4: Simplify right side
    457,086.40x = 174,049,036,330.06
  5. Step 5: Solve for x
    x = 174,049,036,330.06/457,086.40
  6. Step 6: Final answer
    x = 380,779.29

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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.