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Finding the Fourth Proportional to 480,884.88, 663,645.36 and 289,959.84

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Solution

The fourth proportional to 480,884.88, 663,645.36 and 289,959.84 is: 400,159.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,884.88 : 663,645.36 = 289,959.84 : x
  2. Step 2: Convert to fraction form
    480,884.88/663,645.36 = 289,959.84/x
  3. Step 3: Cross multiply
    480,884.88x = 663,645.36 × 289,959.84
  4. Step 4: Simplify right side
    480,884.88x = 192,430,502,402.34
  5. Step 5: Solve for x
    x = 192,430,502,402.34/480,884.88
  6. Step 6: Final answer
    x = 400,159.19

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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.