Home / 817,894.53-1,128,719.52-445,382.10

Finding the Fourth Proportional to 817,894.53, 1,128,719.52 and 445,382.10

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Solution

The fourth proportional to 817,894.53, 1,128,719.52 and 445,382.10 is: 614,640.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,894.53 : 1,128,719.52 = 445,382.10 : x
  2. Step 2: Convert to fraction form
    817,894.53/1,128,719.52 = 445,382.10/x
  3. Step 3: Cross multiply
    817,894.53x = 1,128,719.52 × 445,382.10
  4. Step 4: Simplify right side
    817,894.53x = 502,711,470,128.59
  5. Step 5: Solve for x
    x = 502,711,470,128.59/817,894.53
  6. Step 6: Final answer
    x = 614,640.95

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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.