Home / 807,396.59-1,114,208.34-439,871.92

Finding the Fourth Proportional to 807,396.59, 1,114,208.34 and 439,871.92

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Solution

The fourth proportional to 807,396.59, 1,114,208.34 and 439,871.92 is: 607,023.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,396.59 : 1,114,208.34 = 439,871.92 : x
  2. Step 2: Convert to fraction form
    807,396.59/1,114,208.34 = 439,871.92/x
  3. Step 3: Cross multiply
    807,396.59x = 1,114,208.34 × 439,871.92
  4. Step 4: Simplify right side
    807,396.59x = 490,108,959,835.05
  5. Step 5: Solve for x
    x = 490,108,959,835.05/807,396.59
  6. Step 6: Final answer
    x = 607,023.82

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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.