Home / 780,609.65-1,170,116.91-442,936.98

Finding the Fourth Proportional to 780,609.65, 1,170,116.91 and 442,936.98

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Solution

The fourth proportional to 780,609.65, 1,170,116.91 and 442,936.98 is: 663,952.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,609.65 : 1,170,116.91 = 442,936.98 : x
  2. Step 2: Convert to fraction form
    780,609.65/1,170,116.91 = 442,936.98/x
  3. Step 3: Cross multiply
    780,609.65x = 1,170,116.91 × 442,936.98
  4. Step 4: Simplify right side
    780,609.65x = 518,288,050,362.33
  5. Step 5: Solve for x
    x = 518,288,050,362.33/780,609.65
  6. Step 6: Final answer
    x = 663,952.92

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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.