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Finding the Fourth Proportional to 684,308.94, 944,263.92 and 378,344.00

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Solution

The fourth proportional to 684,308.94, 944,263.92 and 378,344.00 is: 522,069.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,308.94 : 944,263.92 = 378,344.00 : x
  2. Step 2: Convert to fraction form
    684,308.94/944,263.92 = 378,344.00/x
  3. Step 3: Cross multiply
    684,308.94x = 944,263.92 × 378,344.00
  4. Step 4: Simplify right side
    684,308.94x = 357,256,583,827.16
  5. Step 5: Solve for x
    x = 357,256,583,827.16/684,308.94
  6. Step 6: Final answer
    x = 522,069.15

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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.