Home / 885,540.18-1,328,211.84-316,898.30

Finding the Fourth Proportional to 885,540.18, 1,328,211.84 and 316,898.30

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Solution

The fourth proportional to 885,540.18, 1,328,211.84 and 316,898.30 is: 475,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,540.18 : 1,328,211.84 = 316,898.30 : x
  2. Step 2: Convert to fraction form
    885,540.18/1,328,211.84 = 316,898.30/x
  3. Step 3: Cross multiply
    885,540.18x = 1,328,211.84 × 316,898.30
  4. Step 4: Simplify right side
    885,540.18x = 420,908,074,135.87
  5. Step 5: Solve for x
    x = 420,908,074,135.87/885,540.18
  6. Step 6: Final answer
    x = 475,312.23

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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.