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Finding the Fourth Proportional to 684,649.26, 944,497.83 and 443,009.76

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Solution

The fourth proportional to 684,649.26, 944,497.83 and 443,009.76 is: 611,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,649.26 : 944,497.83 = 443,009.76 : x
  2. Step 2: Convert to fraction form
    684,649.26/944,497.83 = 443,009.76/x
  3. Step 3: Cross multiply
    684,649.26x = 944,497.83 × 443,009.76
  4. Step 4: Simplify right side
    684,649.26x = 418,421,756,988.82
  5. Step 5: Solve for x
    x = 418,421,756,988.82/684,649.26
  6. Step 6: Final answer
    x = 611,147.61

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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.