Home / 1,117,678.34-1,676,578.26-318,898.46

Finding the Fourth Proportional to 1,117,678.34, 1,676,578.26 and 318,898.46

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Solution

The fourth proportional to 1,117,678.34, 1,676,578.26 and 318,898.46 is: 478,365.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,678.34 : 1,676,578.26 = 318,898.46 : x
  2. Step 2: Convert to fraction form
    1,117,678.34/1,676,578.26 = 318,898.46/x
  3. Step 3: Cross multiply
    1,117,678.34x = 1,676,578.26 × 318,898.46
  4. Step 4: Simplify right side
    1,117,678.34x = 534,658,225,183.48
  5. Step 5: Solve for x
    x = 534,658,225,183.48/1,117,678.34
  6. Step 6: Final answer
    x = 478,365.02

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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.