Home / 735,402.80-1,102,319.40-419,178.80

Finding the Fourth Proportional to 735,402.80, 1,102,319.40 and 419,178.80

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Solution

The fourth proportional to 735,402.80, 1,102,319.40 and 419,178.80 is: 628,320.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,402.80 : 1,102,319.40 = 419,178.80 : x
  2. Step 2: Convert to fraction form
    735,402.80/1,102,319.40 = 419,178.80/x
  3. Step 3: Cross multiply
    735,402.80x = 1,102,319.40 × 419,178.80
  4. Step 4: Simplify right side
    735,402.80x = 462,068,923,308.72
  5. Step 5: Solve for x
    x = 462,068,923,308.72/735,402.80
  6. Step 6: Final answer
    x = 628,320.86

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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.