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Finding the Fourth Proportional to 684,282.74, 944,272.06 and 378,340.74

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Solution

The fourth proportional to 684,282.74, 944,272.06 and 378,340.74 is: 522,089.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,282.74 : 944,272.06 = 378,340.74 : x
  2. Step 2: Convert to fraction form
    684,282.74/944,272.06 = 378,340.74/x
  3. Step 3: Cross multiply
    684,282.74x = 944,272.06 × 378,340.74
  4. Step 4: Simplify right side
    684,282.74x = 357,256,589,941.72
  5. Step 5: Solve for x
    x = 357,256,589,941.72/684,282.74
  6. Step 6: Final answer
    x = 522,089.14

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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.