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Finding the Fourth Proportional to 663,317.80, 994,782.30 and 308,246.20

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Solution

The fourth proportional to 663,317.80, 994,782.30 and 308,246.20 is: 462,278.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,317.80 : 994,782.30 = 308,246.20 : x
  2. Step 2: Convert to fraction form
    663,317.80/994,782.30 = 308,246.20/x
  3. Step 3: Cross multiply
    663,317.80x = 994,782.30 × 308,246.20
  4. Step 4: Simplify right side
    663,317.80x = 306,637,863,802.26
  5. Step 5: Solve for x
    x = 306,637,863,802.26/663,317.80
  6. Step 6: Final answer
    x = 462,278.96

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1.5x scale

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.