Home / 820,249.40-1,230,374.10-488,473.40

Finding the Fourth Proportional to 820,249.40, 1,230,374.10 and 488,473.40

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Solution

The fourth proportional to 820,249.40, 1,230,374.10 and 488,473.40 is: 732,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,249.40 : 1,230,374.10 = 488,473.40 : x
  2. Step 2: Convert to fraction form
    820,249.40/1,230,374.10 = 488,473.40/x
  3. Step 3: Cross multiply
    820,249.40x = 1,230,374.10 × 488,473.40
  4. Step 4: Simplify right side
    820,249.40x = 601,005,019,898.94
  5. Step 5: Solve for x
    x = 601,005,019,898.94/820,249.40
  6. Step 6: Final answer
    x = 732,710.10

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1.5x scale

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.