Home / 1,306,403.20-1,959,728-507,745.88

Finding the Fourth Proportional to 1,306,403.20, 1,959,728 and 507,745.88

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Solution

The fourth proportional to 1,306,403.20, 1,959,728 and 507,745.88 is: 761,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306,403.20 : 1,959,728 = 507,745.88 : x
  2. Step 2: Convert to fraction form
    1,306,403.20/1,959,728 = 507,745.88/x
  3. Step 3: Cross multiply
    1,306,403.20x = 1,959,728 × 507,745.88
  4. Step 4: Simplify right side
    1,306,403.20x = 995,043,817,920.64
  5. Step 5: Solve for x
    x = 995,043,817,920.64/1,306,403.20
  6. Step 6: Final answer
    x = 761,666.70

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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.