Home / 753,064.20-1,129,596.30-353,980.44

Finding the Fourth Proportional to 753,064.20, 1,129,596.30 and 353,980.44

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Solution

The fourth proportional to 753,064.20, 1,129,596.30 and 353,980.44 is: 530,970.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,064.20 : 1,129,596.30 = 353,980.44 : x
  2. Step 2: Convert to fraction form
    753,064.20/1,129,596.30 = 353,980.44/x
  3. Step 3: Cross multiply
    753,064.20x = 1,129,596.30 × 353,980.44
  4. Step 4: Simplify right side
    753,064.20x = 399,854,995,296.37
  5. Step 5: Solve for x
    x = 399,854,995,296.37/753,064.20
  6. Step 6: Final answer
    x = 530,970.66

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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.