Home / 770,812.20-1,154,663.10-534,421.80

Finding the Fourth Proportional to 770,812.20, 1,154,663.10 and 534,421.80

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Solution

The fourth proportional to 770,812.20, 1,154,663.10 and 534,421.80 is: 800,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,812.20 : 1,154,663.10 = 534,421.80 : x
  2. Step 2: Convert to fraction form
    770,812.20/1,154,663.10 = 534,421.80/x
  3. Step 3: Cross multiply
    770,812.20x = 1,154,663.10 × 534,421.80
  4. Step 4: Simplify right side
    770,812.20x = 617,077,132,295.58
  5. Step 5: Solve for x
    x = 617,077,132,295.58/770,812.20
  6. Step 6: Final answer
    x = 800,554.44

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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.