Home / 3,118,988.80-4,680,232.80-1,321,566.40

Finding the Fourth Proportional to 3,118,988.80, 4,680,232.80 and 1,321,566.40

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Solution

The fourth proportional to 3,118,988.80, 4,680,232.80 and 1,321,566.40 is: 1,983,090.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,988.80 : 4,680,232.80 = 1,321,566.40 : x
  2. Step 2: Convert to fraction form
    3,118,988.80/4,680,232.80 = 1,321,566.40/x
  3. Step 3: Cross multiply
    3,118,988.80x = 4,680,232.80 × 1,321,566.40
  4. Step 4: Simplify right side
    3,118,988.80x = 6,185,238,412,657.92
  5. Step 5: Solve for x
    x = 6,185,238,412,657.92/3,118,988.80
  6. Step 6: Final answer
    x = 1,983,090.93

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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.