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Finding the Fourth Proportional to 423,943.04, 584,873.76 and 273,128

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Solution

The fourth proportional to 423,943.04, 584,873.76 and 273,128 is: 376,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,943.04 : 584,873.76 = 273,128 : x
  2. Step 2: Convert to fraction form
    423,943.04/584,873.76 = 273,128/x
  3. Step 3: Cross multiply
    423,943.04x = 584,873.76 × 273,128
  4. Step 4: Simplify right side
    423,943.04x = 159,745,400,321.28
  5. Step 5: Solve for x
    x = 159,745,400,321.28/423,943.04
  6. Step 6: Final answer
    x = 376,808.64

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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.