Home / 557,858.39-769,849.65-303,210.18

Finding the Fourth Proportional to 557,858.39, 769,849.65 and 303,210.18

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Solution

The fourth proportional to 557,858.39, 769,849.65 and 303,210.18 is: 418,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,858.39 : 769,849.65 = 303,210.18 : x
  2. Step 2: Convert to fraction form
    557,858.39/769,849.65 = 303,210.18/x
  3. Step 3: Cross multiply
    557,858.39x = 769,849.65 × 303,210.18
  4. Step 4: Simplify right side
    557,858.39x = 233,426,250,949.44
  5. Step 5: Solve for x
    x = 233,426,250,949.44/557,858.39
  6. Step 6: Final answer
    x = 418,432.81

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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.