Home / 1,117,309.89-1,676,063.67-318,574.29

Finding the Fourth Proportional to 1,117,309.89, 1,676,063.67 and 318,574.29

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Solution

The fourth proportional to 1,117,309.89, 1,676,063.67 and 318,574.29 is: 477,889.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,309.89 : 1,676,063.67 = 318,574.29 : x
  2. Step 2: Convert to fraction form
    1,117,309.89/1,676,063.67 = 318,574.29/x
  3. Step 3: Cross multiply
    1,117,309.89x = 1,676,063.67 × 318,574.29
  4. Step 4: Simplify right side
    1,117,309.89x = 533,950,793,665.04
  5. Step 5: Solve for x
    x = 533,950,793,665.04/1,117,309.89
  6. Step 6: Final answer
    x = 477,889.62

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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.