Home / 822,976.63-1,234,208.73-290,372.87

Finding the Fourth Proportional to 822,976.63, 1,234,208.73 and 290,372.87

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Solution

The fourth proportional to 822,976.63, 1,234,208.73 and 290,372.87 is: 435,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,976.63 : 1,234,208.73 = 290,372.87 : x
  2. Step 2: Convert to fraction form
    822,976.63/1,234,208.73 = 290,372.87/x
  3. Step 3: Cross multiply
    822,976.63x = 1,234,208.73 × 290,372.87
  4. Step 4: Simplify right side
    822,976.63x = 358,380,731,109.16
  5. Step 5: Solve for x
    x = 358,380,731,109.16/822,976.63
  6. Step 6: Final answer
    x = 435,468.90

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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.