Home / 839,058.20-1,258,769.55-306,578.38

Finding the Fourth Proportional to 839,058.20, 1,258,769.55 and 306,578.38

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Solution

The fourth proportional to 839,058.20, 1,258,769.55 and 306,578.38 is: 459,934.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,058.20 : 1,258,769.55 = 306,578.38 : x
  2. Step 2: Convert to fraction form
    839,058.20/1,258,769.55 = 306,578.38/x
  3. Step 3: Cross multiply
    839,058.20x = 1,258,769.55 × 306,578.38
  4. Step 4: Simplify right side
    839,058.20x = 385,911,529,432.33
  5. Step 5: Solve for x
    x = 385,911,529,432.33/839,058.20
  6. Step 6: Final answer
    x = 459,934.16

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.