Home / 848,148.60-1,272,222.90-287,183.10

Finding the Fourth Proportional to 848,148.60, 1,272,222.90 and 287,183.10

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Solution

The fourth proportional to 848,148.60, 1,272,222.90 and 287,183.10 is: 430,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,148.60 : 1,272,222.90 = 287,183.10 : x
  2. Step 2: Convert to fraction form
    848,148.60/1,272,222.90 = 287,183.10/x
  3. Step 3: Cross multiply
    848,148.60x = 1,272,222.90 × 287,183.10
  4. Step 4: Simplify right side
    848,148.60x = 365,360,916,312.99
  5. Step 5: Solve for x
    x = 365,360,916,312.99/848,148.60
  6. Step 6: Final answer
    x = 430,774.65

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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.