Home / 705,880.40-1,058,820.60-284,939.60

Finding the Fourth Proportional to 705,880.40, 1,058,820.60 and 284,939.60

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Solution

The fourth proportional to 705,880.40, 1,058,820.60 and 284,939.60 is: 427,409.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,880.40 : 1,058,820.60 = 284,939.60 : x
  2. Step 2: Convert to fraction form
    705,880.40/1,058,820.60 = 284,939.60/x
  3. Step 3: Cross multiply
    705,880.40x = 1,058,820.60 × 284,939.60
  4. Step 4: Simplify right side
    705,880.40x = 301,699,918,235.76
  5. Step 5: Solve for x
    x = 301,699,918,235.76/705,880.40
  6. Step 6: Final answer
    x = 427,409.40

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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.