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Finding the Fourth Proportional to 684,361.17, 944,424.53 and 378,458.25

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Solution

The fourth proportional to 684,361.17, 944,424.53 and 378,458.25 is: 522,275.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,361.17 : 944,424.53 = 378,458.25 : x
  2. Step 2: Convert to fraction form
    684,361.17/944,424.53 = 378,458.25/x
  3. Step 3: Cross multiply
    684,361.17x = 944,424.53 × 378,458.25
  4. Step 4: Simplify right side
    684,361.17x = 357,425,254,880.87
  5. Step 5: Solve for x
    x = 357,425,254,880.87/684,361.17
  6. Step 6: Final answer
    x = 522,275.77

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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.