Home / 684,636.40-944,725.52-378,664.16

Finding the Fourth Proportional to 684,636.40, 944,725.52 and 378,664.16

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Solution

The fourth proportional to 684,636.40, 944,725.52 and 378,664.16 is: 522,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,636.40 : 944,725.52 = 378,664.16 : x
  2. Step 2: Convert to fraction form
    684,636.40/944,725.52 = 378,664.16/x
  3. Step 3: Cross multiply
    684,636.40x = 944,725.52 × 378,664.16
  4. Step 4: Simplify right side
    684,636.40x = 357,733,695,461.36
  5. Step 5: Solve for x
    x = 357,733,695,461.36/684,636.40
  6. Step 6: Final answer
    x = 522,516.32

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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.