Home / 497,973.55-687,256.72-304,494.66

Finding the Fourth Proportional to 497,973.55, 687,256.72 and 304,494.66

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Solution

The fourth proportional to 497,973.55, 687,256.72 and 304,494.66 is: 420,235.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,973.55 : 687,256.72 = 304,494.66 : x
  2. Step 2: Convert to fraction form
    497,973.55/687,256.72 = 304,494.66/x
  3. Step 3: Cross multiply
    497,973.55x = 687,256.72 × 304,494.66
  4. Step 4: Simplify right side
    497,973.55x = 209,266,001,289.12
  5. Step 5: Solve for x
    x = 209,266,001,289.12/497,973.55
  6. Step 6: Final answer
    x = 420,235.17

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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.