Home / 848,007.80-1,272,011.70-512,084.60

Finding the Fourth Proportional to 848,007.80, 1,272,011.70 and 512,084.60

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Solution

The fourth proportional to 848,007.80, 1,272,011.70 and 512,084.60 is: 768,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,007.80 : 1,272,011.70 = 512,084.60 : x
  2. Step 2: Convert to fraction form
    848,007.80/1,272,011.70 = 512,084.60/x
  3. Step 3: Cross multiply
    848,007.80x = 1,272,011.70 × 512,084.60
  4. Step 4: Simplify right side
    848,007.80x = 651,377,602,589.82
  5. Step 5: Solve for x
    x = 651,377,602,589.82/848,007.80
  6. Step 6: Final answer
    x = 768,126.90

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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.