Home / 493,071.15-680,448.81-272,307.75

Finding the Fourth Proportional to 493,071.15, 680,448.81 and 272,307.75

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Solution

The fourth proportional to 493,071.15, 680,448.81 and 272,307.75 is: 375,790.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,071.15 : 680,448.81 = 272,307.75 : x
  2. Step 2: Convert to fraction form
    493,071.15/680,448.81 = 272,307.75/x
  3. Step 3: Cross multiply
    493,071.15x = 680,448.81 × 272,307.75
  4. Step 4: Simplify right side
    493,071.15x = 185,291,486,142.40
  5. Step 5: Solve for x
    x = 185,291,486,142.40/493,071.15
  6. Step 6: Final answer
    x = 375,790.56

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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.