Home / 1,117,679.34-1,676,579.76-318,899.46

Finding the Fourth Proportional to 1,117,679.34, 1,676,579.76 and 318,899.46

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Solution

The fourth proportional to 1,117,679.34, 1,676,579.76 and 318,899.46 is: 478,366.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,679.34 : 1,676,579.76 = 318,899.46 : x
  2. Step 2: Convert to fraction form
    1,117,679.34/1,676,579.76 = 318,899.46/x
  3. Step 3: Cross multiply
    1,117,679.34x = 1,676,579.76 × 318,899.46
  4. Step 4: Simplify right side
    1,117,679.34x = 534,660,380,110.93
  5. Step 5: Solve for x
    x = 534,660,380,110.93/1,117,679.34
  6. Step 6: Final answer
    x = 478,366.52

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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.