Home / 3,119,117.80-4,680,426.30-1,321,695.40

Finding the Fourth Proportional to 3,119,117.80, 4,680,426.30 and 1,321,695.40

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Solution

The fourth proportional to 3,119,117.80, 4,680,426.30 and 1,321,695.40 is: 1,983,284.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,117.80 : 4,680,426.30 = 1,321,695.40 : x
  2. Step 2: Convert to fraction form
    3,119,117.80/4,680,426.30 = 1,321,695.40/x
  3. Step 3: Cross multiply
    3,119,117.80x = 4,680,426.30 × 1,321,695.40
  4. Step 4: Simplify right side
    3,119,117.80x = 6,186,097,910,749.02
  5. Step 5: Solve for x
    x = 6,186,097,910,749.02/3,119,117.80
  6. Step 6: Final answer
    x = 1,983,284.48

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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.