Home / 730,645.50-1,095,005.97-309,400.14

Finding the Fourth Proportional to 730,645.50, 1,095,005.97 and 309,400.14

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Solution

The fourth proportional to 730,645.50, 1,095,005.97 and 309,400.14 is: 463,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,645.50 : 1,095,005.97 = 309,400.14 : x
  2. Step 2: Convert to fraction form
    730,645.50/1,095,005.97 = 309,400.14/x
  3. Step 3: Cross multiply
    730,645.50x = 1,095,005.97 × 309,400.14
  4. Step 4: Simplify right side
    730,645.50x = 338,795,000,418.84
  5. Step 5: Solve for x
    x = 338,795,000,418.84/730,645.50
  6. Step 6: Final answer
    x = 463,692.72

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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.