Home / 778,175.91-1,074,382.56-488,185.07

Finding the Fourth Proportional to 778,175.91, 1,074,382.56 and 488,185.07

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Solution

The fourth proportional to 778,175.91, 1,074,382.56 and 488,185.07 is: 674,008.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,175.91 : 1,074,382.56 = 488,185.07 : x
  2. Step 2: Convert to fraction form
    778,175.91/1,074,382.56 = 488,185.07/x
  3. Step 3: Cross multiply
    778,175.91x = 1,074,382.56 × 488,185.07
  4. Step 4: Simplify right side
    778,175.91x = 524,497,519,888.47
  5. Step 5: Solve for x
    x = 524,497,519,888.47/778,175.91
  6. Step 6: Final answer
    x = 674,008.94

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Double scale
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1.5x scale

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.