Home / 529,749.67-789,634.12-487,234.39

Finding the Fourth Proportional to 529,749.67, 789,634.12 and 487,234.39

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Solution

The fourth proportional to 529,749.67, 789,634.12 and 487,234.39 is: 726,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,749.67 : 789,634.12 = 487,234.39 : x
  2. Step 2: Convert to fraction form
    529,749.67/789,634.12 = 487,234.39/x
  3. Step 3: Cross multiply
    529,749.67x = 789,634.12 × 487,234.39
  4. Step 4: Simplify right side
    529,749.67x = 384,736,896,345.22
  5. Step 5: Solve for x
    x = 384,736,896,345.22/529,749.67
  6. Step 6: Final answer
    x = 726,261.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.