Home / 497,623.20-746,434.80-142,616.40

Finding the Fourth Proportional to 497,623.20, 746,434.80 and 142,616.40

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Solution

The fourth proportional to 497,623.20, 746,434.80 and 142,616.40 is: 213,924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,623.20 : 746,434.80 = 142,616.40 : x
  2. Step 2: Convert to fraction form
    497,623.20/746,434.80 = 142,616.40/x
  3. Step 3: Cross multiply
    497,623.20x = 746,434.80 × 142,616.40
  4. Step 4: Simplify right side
    497,623.20x = 106,453,844,010.72
  5. Step 5: Solve for x
    x = 106,453,844,010.72/497,623.20
  6. Step 6: Final answer
    x = 213,924.60

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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.