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Finding the Fourth Proportional to 684,625.26, 944,710.14 and 378,653.04

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Solution

The fourth proportional to 684,625.26, 944,710.14 and 378,653.04 is: 522,500.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,625.26 : 944,710.14 = 378,653.04 : x
  2. Step 2: Convert to fraction form
    684,625.26/944,710.14 = 378,653.04/x
  3. Step 3: Cross multiply
    684,625.26x = 944,710.14 × 378,653.04
  4. Step 4: Simplify right side
    684,625.26x = 357,717,366,429.83
  5. Step 5: Solve for x
    x = 357,717,366,429.83/684,625.26
  6. Step 6: Final answer
    x = 522,500.98

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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.