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Finding the Fourth Proportional to 485,859.14, 670,483.86 and 270,999.04

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Solution

The fourth proportional to 485,859.14, 670,483.86 and 270,999.04 is: 373,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,859.14 : 670,483.86 = 270,999.04 : x
  2. Step 2: Convert to fraction form
    485,859.14/670,483.86 = 270,999.04/x
  3. Step 3: Cross multiply
    485,859.14x = 670,483.86 × 270,999.04
  4. Step 4: Simplify right side
    485,859.14x = 181,700,482,395.49
  5. Step 5: Solve for x
    x = 181,700,482,395.49/485,859.14
  6. Step 6: Final answer
    x = 373,977.70

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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.