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Finding the Fourth Proportional to 684,299.64, 944,303.76 and 374,196.48

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Solution

The fourth proportional to 684,299.64, 944,303.76 and 374,196.48 is: 516,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,299.64 : 944,303.76 = 374,196.48 : x
  2. Step 2: Convert to fraction form
    684,299.64/944,303.76 = 374,196.48/x
  3. Step 3: Cross multiply
    684,299.64x = 944,303.76 × 374,196.48
  4. Step 4: Simplify right side
    684,299.64x = 353,355,143,042.77
  5. Step 5: Solve for x
    x = 353,355,143,042.77/684,299.64
  6. Step 6: Final answer
    x = 516,374.88

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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.