Home / 529,911.72-731,020.95-314,899.25

Finding the Fourth Proportional to 529,911.72, 731,020.95 and 314,899.25

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Solution

The fourth proportional to 529,911.72, 731,020.95 and 314,899.25 is: 434,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,911.72 : 731,020.95 = 314,899.25 : x
  2. Step 2: Convert to fraction form
    529,911.72/731,020.95 = 314,899.25/x
  3. Step 3: Cross multiply
    529,911.72x = 731,020.95 × 314,899.25
  4. Step 4: Simplify right side
    529,911.72x = 230,197,945,234.18
  5. Step 5: Solve for x
    x = 230,197,945,234.18/529,911.72
  6. Step 6: Final answer
    x = 434,408.10

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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.