Home / 735,400.80-1,102,316.40-419,176.80

Finding the Fourth Proportional to 735,400.80, 1,102,316.40 and 419,176.80

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Solution

The fourth proportional to 735,400.80, 1,102,316.40 and 419,176.80 is: 628,317.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,400.80 : 1,102,316.40 = 419,176.80 : x
  2. Step 2: Convert to fraction form
    735,400.80/1,102,316.40 = 419,176.80/x
  3. Step 3: Cross multiply
    735,400.80x = 1,102,316.40 × 419,176.80
  4. Step 4: Simplify right side
    735,400.80x = 462,065,461,139.52
  5. Step 5: Solve for x
    x = 462,065,461,139.52/735,400.80
  6. Step 6: Final answer
    x = 628,317.87

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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.