Home / 753,069.20-1,129,603.80-353,985.44

Finding the Fourth Proportional to 753,069.20, 1,129,603.80 and 353,985.44

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Solution

The fourth proportional to 753,069.20, 1,129,603.80 and 353,985.44 is: 530,978.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,069.20 : 1,129,603.80 = 353,985.44 : x
  2. Step 2: Convert to fraction form
    753,069.20/1,129,603.80 = 353,985.44/x
  3. Step 3: Cross multiply
    753,069.20x = 1,129,603.80 × 353,985.44
  4. Step 4: Simplify right side
    753,069.20x = 399,863,298,168.67
  5. Step 5: Solve for x
    x = 399,863,298,168.67/753,069.20
  6. Step 6: Final answer
    x = 530,978.16

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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.