Home / 859,624.90-1,289,437.35-823,221.70

Finding the Fourth Proportional to 859,624.90, 1,289,437.35 and 823,221.70

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Solution

The fourth proportional to 859,624.90, 1,289,437.35 and 823,221.70 is: 1,234,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,624.90 : 1,289,437.35 = 823,221.70 : x
  2. Step 2: Convert to fraction form
    859,624.90/1,289,437.35 = 823,221.70/x
  3. Step 3: Cross multiply
    859,624.90x = 1,289,437.35 × 823,221.70
  4. Step 4: Simplify right side
    859,624.90x = 1,061,492,807,310.50
  5. Step 5: Solve for x
    x = 1,061,492,807,310.50/859,624.90
  6. Step 6: Final answer
    x = 1,234,832.55

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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.