Home / 855,628.86-1,180,781.78-468,437.79

Finding the Fourth Proportional to 855,628.86, 1,180,781.78 and 468,437.79

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Solution

The fourth proportional to 855,628.86, 1,180,781.78 and 468,437.79 is: 646,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,628.86 : 1,180,781.78 = 468,437.79 : x
  2. Step 2: Convert to fraction form
    855,628.86/1,180,781.78 = 468,437.79/x
  3. Step 3: Cross multiply
    855,628.86x = 1,180,781.78 × 468,437.79
  4. Step 4: Simplify right side
    855,628.86x = 553,122,807,495.47
  5. Step 5: Solve for x
    x = 553,122,807,495.47/855,628.86
  6. Step 6: Final answer
    x = 646,451.79

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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.