Home / 3,118,990.30-4,680,235.05-1,321,567.90

Finding the Fourth Proportional to 3,118,990.30, 4,680,235.05 and 1,321,567.90

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Solution

The fourth proportional to 3,118,990.30, 4,680,235.05 and 1,321,567.90 is: 1,983,093.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,990.30 : 4,680,235.05 = 1,321,567.90 : x
  2. Step 2: Convert to fraction form
    3,118,990.30/4,680,235.05 = 1,321,567.90/x
  3. Step 3: Cross multiply
    3,118,990.30x = 4,680,235.05 × 1,321,567.90
  4. Step 4: Simplify right side
    3,118,990.30x = 6,185,248,406,534.90
  5. Step 5: Solve for x
    x = 6,185,248,406,534.90/3,118,990.30
  6. Step 6: Final answer
    x = 1,983,093.18

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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.