Home / 705,880.90-1,058,821.35-284,940.10

Finding the Fourth Proportional to 705,880.90, 1,058,821.35 and 284,940.10

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Solution

The fourth proportional to 705,880.90, 1,058,821.35 and 284,940.10 is: 427,410.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,880.90 : 1,058,821.35 = 284,940.10 : x
  2. Step 2: Convert to fraction form
    705,880.90/1,058,821.35 = 284,940.10/x
  3. Step 3: Cross multiply
    705,880.90x = 1,058,821.35 × 284,940.10
  4. Step 4: Simplify right side
    705,880.90x = 301,700,661,351.14
  5. Step 5: Solve for x
    x = 301,700,661,351.14/705,880.90
  6. Step 6: Final answer
    x = 427,410.15

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Double scale
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Similar ratio
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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.