Home / 529,836.12-731,444.64-408,705.48

Finding the Fourth Proportional to 529,836.12, 731,444.64 and 408,705.48

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Solution

The fourth proportional to 529,836.12, 731,444.64 and 408,705.48 is: 564,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,836.12 : 731,444.64 = 408,705.48 : x
  2. Step 2: Convert to fraction form
    529,836.12/731,444.64 = 408,705.48/x
  3. Step 3: Cross multiply
    529,836.12x = 731,444.64 × 408,705.48
  4. Step 4: Simplify right side
    529,836.12x = 298,945,432,684.63
  5. Step 5: Solve for x
    x = 298,945,432,684.63/529,836.12
  6. Step 6: Final answer
    x = 564,222.45

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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.