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Finding the Fourth Proportional to 879,951, 1,214,346.96 and 477,543

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Solution

The fourth proportional to 879,951, 1,214,346.96 and 477,543 is: 659,017.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,951 : 1,214,346.96 = 477,543 : x
  2. Step 2: Convert to fraction form
    879,951/1,214,346.96 = 477,543/x
  3. Step 3: Cross multiply
    879,951x = 1,214,346.96 × 477,543
  4. Step 4: Simplify right side
    879,951x = 579,902,890,319.28
  5. Step 5: Solve for x
    x = 579,902,890,319.28/879,951
  6. Step 6: Final answer
    x = 659,017.25

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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.