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Finding the Fourth Proportional to 490,780.80, 736,219.80 and 170,883.45

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Solution

The fourth proportional to 490,780.80, 736,219.80 and 170,883.45 is: 256,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,780.80 : 736,219.80 = 170,883.45 : x
  2. Step 2: Convert to fraction form
    490,780.80/736,219.80 = 170,883.45/x
  3. Step 3: Cross multiply
    490,780.80x = 736,219.80 × 170,883.45
  4. Step 4: Simplify right side
    490,780.80x = 125,807,779,382.31
  5. Step 5: Solve for x
    x = 125,807,779,382.31/490,780.80
  6. Step 6: Final answer
    x = 256,342.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.