Home / 757,620.54-1,045,515.60-485,688.15

Finding the Fourth Proportional to 757,620.54, 1,045,515.60 and 485,688.15

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Solution

The fourth proportional to 757,620.54, 1,045,515.60 and 485,688.15 is: 670,249.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,620.54 : 1,045,515.60 = 485,688.15 : x
  2. Step 2: Convert to fraction form
    757,620.54/1,045,515.60 = 485,688.15/x
  3. Step 3: Cross multiply
    757,620.54x = 1,045,515.60 × 485,688.15
  4. Step 4: Simplify right side
    757,620.54x = 507,794,537,560.14
  5. Step 5: Solve for x
    x = 507,794,537,560.14/757,620.54
  6. Step 6: Final answer
    x = 670,249.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.