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Finding the Fourth Proportional to 615,488.16, 848,703.96 and 400,229.04

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Solution

The fourth proportional to 615,488.16, 848,703.96 and 400,229.04 is: 551,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,488.16 : 848,703.96 = 400,229.04 : x
  2. Step 2: Convert to fraction form
    615,488.16/848,703.96 = 400,229.04/x
  3. Step 3: Cross multiply
    615,488.16x = 848,703.96 × 400,229.04
  4. Step 4: Simplify right side
    615,488.16x = 339,675,971,155.00
  5. Step 5: Solve for x
    x = 339,675,971,155.00/615,488.16
  6. Step 6: Final answer
    x = 551,880.59

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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.