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Finding the Fourth Proportional to 876,434, 1,209,479.01 and 474,026

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Solution

The fourth proportional to 876,434, 1,209,479.01 and 474,026 is: 654,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,434 : 1,209,479.01 = 474,026 : x
  2. Step 2: Convert to fraction form
    876,434/1,209,479.01 = 474,026/x
  3. Step 3: Cross multiply
    876,434x = 1,209,479.01 × 474,026
  4. Step 4: Simplify right side
    876,434x = 573,324,497,194.26
  5. Step 5: Solve for x
    x = 573,324,497,194.26/876,434
  6. Step 6: Final answer
    x = 654,155.93

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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.