Home / 1,025,850-1,537,944.47-427,259.21

Finding the Fourth Proportional to 1,025,850, 1,537,944.47 and 427,259.21

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Solution

The fourth proportional to 1,025,850, 1,537,944.47 and 427,259.21 is: 640,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,850 : 1,537,944.47 = 427,259.21 : x
  2. Step 2: Convert to fraction form
    1,025,850/1,537,944.47 = 427,259.21/x
  3. Step 3: Cross multiply
    1,025,850x = 1,537,944.47 × 427,259.21
  4. Step 4: Simplify right side
    1,025,850x = 657,100,929,450.05
  5. Step 5: Solve for x
    x = 657,100,929,450.05/1,025,850
  6. Step 6: Final answer
    x = 640,542.90

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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.