Home / 848,101.30-1,274,225.55-638,149.30

Finding the Fourth Proportional to 848,101.30, 1,274,225.55 and 638,149.30

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Solution

The fourth proportional to 848,101.30, 1,274,225.55 and 638,149.30 is: 958,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,101.30 : 1,274,225.55 = 638,149.30 : x
  2. Step 2: Convert to fraction form
    848,101.30/1,274,225.55 = 638,149.30/x
  3. Step 3: Cross multiply
    848,101.30x = 1,274,225.55 × 638,149.30
  4. Step 4: Simplify right side
    848,101.30x = 813,146,142,774.62
  5. Step 5: Solve for x
    x = 813,146,142,774.62/848,101.30
  6. Step 6: Final answer
    x = 958,784.22

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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.