Home / 529,811.30-731,212.17-402,284.90

Finding the Fourth Proportional to 529,811.30, 731,212.17 and 402,284.90

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Solution

The fourth proportional to 529,811.30, 731,212.17 and 402,284.90 is: 555,208.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,811.30 : 731,212.17 = 402,284.90 : x
  2. Step 2: Convert to fraction form
    529,811.30/731,212.17 = 402,284.90/x
  3. Step 3: Cross multiply
    529,811.30x = 731,212.17 × 402,284.90
  4. Step 4: Simplify right side
    529,811.30x = 294,155,614,687.23
  5. Step 5: Solve for x
    x = 294,155,614,687.23/529,811.30
  6. Step 6: Final answer
    x = 555,208.27

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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.