Home / 1,117,645.56-1,676,483.72-318,926.86

Finding the Fourth Proportional to 1,117,645.56, 1,676,483.72 and 318,926.86

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Solution

The fourth proportional to 1,117,645.56, 1,676,483.72 and 318,926.86 is: 478,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,645.56 : 1,676,483.72 = 318,926.86 : x
  2. Step 2: Convert to fraction form
    1,117,645.56/1,676,483.72 = 318,926.86/x
  3. Step 3: Cross multiply
    1,117,645.56x = 1,676,483.72 × 318,926.86
  4. Step 4: Simplify right side
    1,117,645.56x = 534,675,688,660.72
  5. Step 5: Solve for x
    x = 534,675,688,660.72/1,117,645.56
  6. Step 6: Final answer
    x = 478,394.68

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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.