Home / 770,469.40-1,154,537.70-520,859.80

Finding the Fourth Proportional to 770,469.40, 1,154,537.70 and 520,859.80

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Solution

The fourth proportional to 770,469.40, 1,154,537.70 and 520,859.80 is: 780,501.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,469.40 : 1,154,537.70 = 520,859.80 : x
  2. Step 2: Convert to fraction form
    770,469.40/1,154,537.70 = 520,859.80/x
  3. Step 3: Cross multiply
    770,469.40x = 1,154,537.70 × 520,859.80
  4. Step 4: Simplify right side
    770,469.40x = 601,352,275,514.46
  5. Step 5: Solve for x
    x = 601,352,275,514.46/770,469.40
  6. Step 6: Final answer
    x = 780,501.18

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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.