Home / 689,345.24-951,282.78-383,415.03

Finding the Fourth Proportional to 689,345.24, 951,282.78 and 383,415.03

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Solution

The fourth proportional to 689,345.24, 951,282.78 and 383,415.03 is: 529,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,345.24 : 951,282.78 = 383,415.03 : x
  2. Step 2: Convert to fraction form
    689,345.24/951,282.78 = 383,415.03/x
  3. Step 3: Cross multiply
    689,345.24x = 951,282.78 × 383,415.03
  4. Step 4: Simplify right side
    689,345.24x = 364,736,117,688.83
  5. Step 5: Solve for x
    x = 364,736,117,688.83/689,345.24
  6. Step 6: Final answer
    x = 529,105.16

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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.