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Finding the Fourth Proportional to 719,492.29, 992,873.33 and 397,195.45

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Solution

The fourth proportional to 719,492.29, 992,873.33 and 397,195.45 is: 548,115.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,492.29 : 992,873.33 = 397,195.45 : x
  2. Step 2: Convert to fraction form
    719,492.29/992,873.33 = 397,195.45/x
  3. Step 3: Cross multiply
    719,492.29x = 992,873.33 × 397,195.45
  4. Step 4: Simplify right side
    719,492.29x = 394,364,766,123.67
  5. Step 5: Solve for x
    x = 394,364,766,123.67/719,492.29
  6. Step 6: Final answer
    x = 548,115.35

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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.