Home / 976,953.42-1,347,522.39-687,179.58

Finding the Fourth Proportional to 976,953.42, 1,347,522.39 and 687,179.58

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Solution

The fourth proportional to 976,953.42, 1,347,522.39 and 687,179.58 is: 947,834.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,953.42 : 1,347,522.39 = 687,179.58 : x
  2. Step 2: Convert to fraction form
    976,953.42/1,347,522.39 = 687,179.58/x
  3. Step 3: Cross multiply
    976,953.42x = 1,347,522.39 × 687,179.58
  4. Step 4: Simplify right side
    976,953.42x = 925,989,870,000.80
  5. Step 5: Solve for x
    x = 925,989,870,000.80/976,953.42
  6. Step 6: Final answer
    x = 947,834.21

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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.