Home / 849,609.18-1,274,228.90-280,855.91

Finding the Fourth Proportional to 849,609.18, 1,274,228.90 and 280,855.91

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Solution

The fourth proportional to 849,609.18, 1,274,228.90 and 280,855.91 is: 421,222.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,609.18 : 1,274,228.90 = 280,855.91 : x
  2. Step 2: Convert to fraction form
    849,609.18/1,274,228.90 = 280,855.91/x
  3. Step 3: Cross multiply
    849,609.18x = 1,274,228.90 × 280,855.91
  4. Step 4: Simplify right side
    849,609.18x = 357,874,712,134.86
  5. Step 5: Solve for x
    x = 357,874,712,134.86/849,609.18
  6. Step 6: Final answer
    x = 421,222.75

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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.