Home / 662,666.20-993,999.30-213,386.20

Finding the Fourth Proportional to 662,666.20, 993,999.30 and 213,386.20

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Solution

The fourth proportional to 662,666.20, 993,999.30 and 213,386.20 is: 320,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,666.20 : 993,999.30 = 213,386.20 : x
  2. Step 2: Convert to fraction form
    662,666.20/993,999.30 = 213,386.20/x
  3. Step 3: Cross multiply
    662,666.20x = 993,999.30 × 213,386.20
  4. Step 4: Simplify right side
    662,666.20x = 212,105,733,429.66
  5. Step 5: Solve for x
    x = 212,105,733,429.66/662,666.20
  6. Step 6: Final answer
    x = 320,079.30

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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.