Home / 770,511.20-1,155,421.20-297,039.20

Finding the Fourth Proportional to 770,511.20, 1,155,421.20 and 297,039.20

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Solution

The fourth proportional to 770,511.20, 1,155,421.20 and 297,039.20 is: 445,425.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,511.20 : 1,155,421.20 = 297,039.20 : x
  2. Step 2: Convert to fraction form
    770,511.20/1,155,421.20 = 297,039.20/x
  3. Step 3: Cross multiply
    770,511.20x = 1,155,421.20 × 297,039.20
  4. Step 4: Simplify right side
    770,511.20x = 343,205,388,911.04
  5. Step 5: Solve for x
    x = 343,205,388,911.04/770,511.20
  6. Step 6: Final answer
    x = 445,425.57

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1.5x scale

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.