Home / 785,465.10-1,083,600.18-494,900.28

Finding the Fourth Proportional to 785,465.10, 1,083,600.18 and 494,900.28

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Solution

The fourth proportional to 785,465.10, 1,083,600.18 and 494,900.28 is: 682,747.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,465.10 : 1,083,600.18 = 494,900.28 : x
  2. Step 2: Convert to fraction form
    785,465.10/1,083,600.18 = 494,900.28/x
  3. Step 3: Cross multiply
    785,465.10x = 1,083,600.18 × 494,900.28
  4. Step 4: Simplify right side
    785,465.10x = 536,274,032,490.05
  5. Step 5: Solve for x
    x = 536,274,032,490.05/785,465.10
  6. Step 6: Final answer
    x = 682,747.12

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Double scale
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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.