Home / 775,307.76-1,162,983.48-214,342.20

Finding the Fourth Proportional to 775,307.76, 1,162,983.48 and 214,342.20

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Solution

The fourth proportional to 775,307.76, 1,162,983.48 and 214,342.20 is: 321,519.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,307.76 : 1,162,983.48 = 214,342.20 : x
  2. Step 2: Convert to fraction form
    775,307.76/1,162,983.48 = 214,342.20/x
  3. Step 3: Cross multiply
    775,307.76x = 1,162,983.48 × 214,342.20
  4. Step 4: Simplify right side
    775,307.76x = 249,276,437,666.86
  5. Step 5: Solve for x
    x = 249,276,437,666.86/775,307.76
  6. Step 6: Final answer
    x = 321,519.34

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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.