Home / 529,926.71-731,403.88-300,488.54

Finding the Fourth Proportional to 529,926.71, 731,403.88 and 300,488.54

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Solution

The fourth proportional to 529,926.71, 731,403.88 and 300,488.54 is: 414,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,926.71 : 731,403.88 = 300,488.54 : x
  2. Step 2: Convert to fraction form
    529,926.71/731,403.88 = 300,488.54/x
  3. Step 3: Cross multiply
    529,926.71x = 731,403.88 × 300,488.54
  4. Step 4: Simplify right side
    529,926.71x = 219,778,479,643.29
  5. Step 5: Solve for x
    x = 219,778,479,643.29/529,926.71
  6. Step 6: Final answer
    x = 414,733.73

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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.