Home / 689,345.36-951,282.95-383,415.16

Finding the Fourth Proportional to 689,345.36, 951,282.95 and 383,415.16

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Solution

The fourth proportional to 689,345.36, 951,282.95 and 383,415.16 is: 529,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,345.36 : 951,282.95 = 383,415.16 : x
  2. Step 2: Convert to fraction form
    689,345.36/951,282.95 = 383,415.16/x
  3. Step 3: Cross multiply
    689,345.36x = 951,282.95 × 383,415.16
  4. Step 4: Simplify right side
    689,345.36x = 364,736,302,350.02
  5. Step 5: Solve for x
    x = 364,736,302,350.02/689,345.36
  6. Step 6: Final answer
    x = 529,105.33

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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.