Home / 640,917.51-884,688.74-369,093.62

Finding the Fourth Proportional to 640,917.51, 884,688.74 and 369,093.62

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Solution

The fourth proportional to 640,917.51, 884,688.74 and 369,093.62 is: 509,477.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,917.51 : 884,688.74 = 369,093.62 : x
  2. Step 2: Convert to fraction form
    640,917.51/884,688.74 = 369,093.62/x
  3. Step 3: Cross multiply
    640,917.51x = 884,688.74 × 369,093.62
  4. Step 4: Simplify right side
    640,917.51x = 326,532,963,350.93
  5. Step 5: Solve for x
    x = 326,532,963,350.93/640,917.51
  6. Step 6: Final answer
    x = 509,477.36

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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.