Home / 820,130.80-1,230,196.20-501,266.20

Finding the Fourth Proportional to 820,130.80, 1,230,196.20 and 501,266.20

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Solution

The fourth proportional to 820,130.80, 1,230,196.20 and 501,266.20 is: 751,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,130.80 : 1,230,196.20 = 501,266.20 : x
  2. Step 2: Convert to fraction form
    820,130.80/1,230,196.20 = 501,266.20/x
  3. Step 3: Cross multiply
    820,130.80x = 1,230,196.20 × 501,266.20
  4. Step 4: Simplify right side
    820,130.80x = 616,655,774,428.44
  5. Step 5: Solve for x
    x = 616,655,774,428.44/820,130.80
  6. Step 6: Final answer
    x = 751,899.30

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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.