Home / 740,318.70-1,109,712.60-402,645.90

Finding the Fourth Proportional to 740,318.70, 1,109,712.60 and 402,645.90

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Solution

The fourth proportional to 740,318.70, 1,109,712.60 and 402,645.90 is: 603,552.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,318.70 : 1,109,712.60 = 402,645.90 : x
  2. Step 2: Convert to fraction form
    740,318.70/1,109,712.60 = 402,645.90/x
  3. Step 3: Cross multiply
    740,318.70x = 1,109,712.60 × 402,645.90
  4. Step 4: Simplify right side
    740,318.70x = 446,821,228,568.34
  5. Step 5: Solve for x
    x = 446,821,228,568.34/740,318.70
  6. Step 6: Final answer
    x = 603,552.54

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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.