Home / 430,944.86-646,417.28-220,467.98

Finding the Fourth Proportional to 430,944.86, 646,417.28 and 220,467.98

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Solution

The fourth proportional to 430,944.86, 646,417.28 and 220,467.98 is: 330,701.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,944.86 : 646,417.28 = 220,467.98 : x
  2. Step 2: Convert to fraction form
    430,944.86/646,417.28 = 220,467.98/x
  3. Step 3: Cross multiply
    430,944.86x = 646,417.28 × 220,467.98
  4. Step 4: Simplify right side
    430,944.86x = 142,514,309,277.78
  5. Step 5: Solve for x
    x = 142,514,309,277.78/430,944.86
  6. Step 6: Final answer
    x = 330,701.96

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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.