Home / 689,487.32-1,034,230.98-216,210.80

Finding the Fourth Proportional to 689,487.32, 1,034,230.98 and 216,210.80

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Solution

The fourth proportional to 689,487.32, 1,034,230.98 and 216,210.80 is: 324,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,487.32 : 1,034,230.98 = 216,210.80 : x
  2. Step 2: Convert to fraction form
    689,487.32/1,034,230.98 = 216,210.80/x
  3. Step 3: Cross multiply
    689,487.32x = 1,034,230.98 × 216,210.80
  4. Step 4: Simplify right side
    689,487.32x = 223,611,907,570.58
  5. Step 5: Solve for x
    x = 223,611,907,570.58/689,487.32
  6. Step 6: Final answer
    x = 324,316.20

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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.