Home / 917,699.88-1,376,481.78-385,199.40

Finding the Fourth Proportional to 917,699.88, 1,376,481.78 and 385,199.40

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Solution

The fourth proportional to 917,699.88, 1,376,481.78 and 385,199.40 is: 577,770.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,699.88 : 1,376,481.78 = 385,199.40 : x
  2. Step 2: Convert to fraction form
    917,699.88/1,376,481.78 = 385,199.40/x
  3. Step 3: Cross multiply
    917,699.88x = 1,376,481.78 × 385,199.40
  4. Step 4: Simplify right side
    917,699.88x = 530,219,955,766.93
  5. Step 5: Solve for x
    x = 530,219,955,766.93/917,699.88
  6. Step 6: Final answer
    x = 577,770.54

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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.