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Finding the Fourth Proportional to 453,979.83, 626,445.81 and 279,522.33

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Solution

The fourth proportional to 453,979.83, 626,445.81 and 279,522.33 is: 385,712.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,979.83 : 626,445.81 = 279,522.33 : x
  2. Step 2: Convert to fraction form
    453,979.83/626,445.81 = 279,522.33/x
  3. Step 3: Cross multiply
    453,979.83x = 626,445.81 × 279,522.33
  4. Step 4: Simplify right side
    453,979.83x = 175,105,592,429.94
  5. Step 5: Solve for x
    x = 175,105,592,429.94/453,979.83
  6. Step 6: Final answer
    x = 385,712.27

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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.