Home / 684,623.64-944,707.90-378,651.40

Finding the Fourth Proportional to 684,623.64, 944,707.90 and 378,651.40

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Solution

The fourth proportional to 684,623.64, 944,707.90 and 378,651.40 is: 522,498.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,623.64 : 944,707.90 = 378,651.40 : x
  2. Step 2: Convert to fraction form
    684,623.64/944,707.90 = 378,651.40/x
  3. Step 3: Cross multiply
    684,623.64x = 944,707.90 × 378,651.40
  4. Step 4: Simplify right side
    684,623.64x = 357,714,968,926.06
  5. Step 5: Solve for x
    x = 357,714,968,926.06/684,623.64
  6. Step 6: Final answer
    x = 522,498.71

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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.