Home / 830,108.40-1,244,701.80-330,908.40

Finding the Fourth Proportional to 830,108.40, 1,244,701.80 and 330,908.40

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Solution

The fourth proportional to 830,108.40, 1,244,701.80 and 330,908.40 is: 496,178.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,108.40 : 1,244,701.80 = 330,908.40 : x
  2. Step 2: Convert to fraction form
    830,108.40/1,244,701.80 = 330,908.40/x
  3. Step 3: Cross multiply
    830,108.40x = 1,244,701.80 × 330,908.40
  4. Step 4: Simplify right side
    830,108.40x = 411,882,281,115.12
  5. Step 5: Solve for x
    x = 411,882,281,115.12/830,108.40
  6. Step 6: Final answer
    x = 496,178.91

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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.