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Finding the Fourth Proportional to 557,800.20, 769,770.24 and 303,151.40

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Solution

The fourth proportional to 557,800.20, 769,770.24 and 303,151.40 is: 418,352.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,800.20 : 769,770.24 = 303,151.40 : x
  2. Step 2: Convert to fraction form
    557,800.20/769,770.24 = 303,151.40/x
  3. Step 3: Cross multiply
    557,800.20x = 769,770.24 × 303,151.40
  4. Step 4: Simplify right side
    557,800.20x = 233,356,925,934.34
  5. Step 5: Solve for x
    x = 233,356,925,934.34/557,800.20
  6. Step 6: Final answer
    x = 418,352.17

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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.