Home / 788,688.78-1,088,390.97-426,112.53

Finding the Fourth Proportional to 788,688.78, 1,088,390.97 and 426,112.53

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Solution

The fourth proportional to 788,688.78, 1,088,390.97 and 426,112.53 is: 588,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,688.78 : 1,088,390.97 = 426,112.53 : x
  2. Step 2: Convert to fraction form
    788,688.78/1,088,390.97 = 426,112.53/x
  3. Step 3: Cross multiply
    788,688.78x = 1,088,390.97 × 426,112.53
  4. Step 4: Simplify right side
    788,688.78x = 463,777,029,855.85
  5. Step 5: Solve for x
    x = 463,777,029,855.85/788,688.78
  6. Step 6: Final answer
    x = 588,035.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.