Home / 848,000.30-1,272,000.45-512,077.10

Finding the Fourth Proportional to 848,000.30, 1,272,000.45 and 512,077.10

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Solution

The fourth proportional to 848,000.30, 1,272,000.45 and 512,077.10 is: 768,115.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,000.30 : 1,272,000.45 = 512,077.10 : x
  2. Step 2: Convert to fraction form
    848,000.30/1,272,000.45 = 512,077.10/x
  3. Step 3: Cross multiply
    848,000.30x = 1,272,000.45 × 512,077.10
  4. Step 4: Simplify right side
    848,000.30x = 651,362,301,634.70
  5. Step 5: Solve for x
    x = 651,362,301,634.70/848,000.30
  6. Step 6: Final answer
    x = 768,115.65

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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.