Home / 822,121.92-1,134,672.63-478,064.31

Finding the Fourth Proportional to 822,121.92, 1,134,672.63 and 478,064.31

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Solution

The fourth proportional to 822,121.92, 1,134,672.63 and 478,064.31 is: 659,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,121.92 : 1,134,672.63 = 478,064.31 : x
  2. Step 2: Convert to fraction form
    822,121.92/1,134,672.63 = 478,064.31/x
  3. Step 3: Cross multiply
    822,121.92x = 1,134,672.63 × 478,064.31
  4. Step 4: Simplify right side
    822,121.92x = 542,446,487,936.84
  5. Step 5: Solve for x
    x = 542,446,487,936.84/822,121.92
  6. Step 6: Final answer
    x = 659,812.71

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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.