Home / 684,837.46-945,063.22-378,913.82

Finding the Fourth Proportional to 684,837.46, 945,063.22 and 378,913.82

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Solution

The fourth proportional to 684,837.46, 945,063.22 and 378,913.82 is: 522,894.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,837.46 : 945,063.22 = 378,913.82 : x
  2. Step 2: Convert to fraction form
    684,837.46/945,063.22 = 378,913.82/x
  3. Step 3: Cross multiply
    684,837.46x = 945,063.22 × 378,913.82
  4. Step 4: Simplify right side
    684,837.46x = 358,097,514,831.70
  5. Step 5: Solve for x
    x = 358,097,514,831.70/684,837.46
  6. Step 6: Final answer
    x = 522,894.17

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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.