Home / 778,097.64-1,074,042.63-455,912.04

Finding the Fourth Proportional to 778,097.64, 1,074,042.63 and 455,912.04

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Solution

The fourth proportional to 778,097.64, 1,074,042.63 and 455,912.04 is: 629,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,097.64 : 1,074,042.63 = 455,912.04 : x
  2. Step 2: Convert to fraction form
    778,097.64/1,074,042.63 = 455,912.04/x
  3. Step 3: Cross multiply
    778,097.64x = 1,074,042.63 × 455,912.04
  4. Step 4: Simplify right side
    778,097.64x = 489,668,966,490.27
  5. Step 5: Solve for x
    x = 489,668,966,490.27/778,097.64
  6. Step 6: Final answer
    x = 629,315.58

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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.