Home / 497,981.12-747,124.76-445,055.72

Finding the Fourth Proportional to 497,981.12, 747,124.76 and 445,055.72

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Solution

The fourth proportional to 497,981.12, 747,124.76 and 445,055.72 is: 667,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,981.12 : 747,124.76 = 445,055.72 : x
  2. Step 2: Convert to fraction form
    497,981.12/747,124.76 = 445,055.72/x
  3. Step 3: Cross multiply
    497,981.12x = 747,124.76 × 445,055.72
  4. Step 4: Simplify right side
    497,981.12x = 332,512,145,368.64
  5. Step 5: Solve for x
    x = 332,512,145,368.64/497,981.12
  6. Step 6: Final answer
    x = 667,720.39

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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.