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Finding the Fourth Proportional to 684,277.84, 944,265.32 and 378,336.48

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Solution

The fourth proportional to 684,277.84, 944,265.32 and 378,336.48 is: 522,083.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,277.84 : 944,265.32 = 378,336.48 : x
  2. Step 2: Convert to fraction form
    684,277.84/944,265.32 = 378,336.48/x
  3. Step 3: Cross multiply
    684,277.84x = 944,265.32 × 378,336.48
  4. Step 4: Simplify right side
    684,277.84x = 357,250,017,354.87
  5. Step 5: Solve for x
    x = 357,250,017,354.87/684,277.84
  6. Step 6: Final answer
    x = 522,083.28

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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.