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Finding the Fourth Proportional to 587,279.60, 880,919.40 and 492,801.20

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Solution

The fourth proportional to 587,279.60, 880,919.40 and 492,801.20 is: 739,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,279.60 : 880,919.40 = 492,801.20 : x
  2. Step 2: Convert to fraction form
    587,279.60/880,919.40 = 492,801.20/x
  3. Step 3: Cross multiply
    587,279.60x = 880,919.40 × 492,801.20
  4. Step 4: Simplify right side
    587,279.60x = 434,118,137,423.28
  5. Step 5: Solve for x
    x = 434,118,137,423.28/587,279.60
  6. Step 6: Final answer
    x = 739,201.80

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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.