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Finding the Fourth Proportional to 891,881.90, 1,230,800.36 and 483,983.82

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Solution

The fourth proportional to 891,881.90, 1,230,800.36 and 483,983.82 is: 667,899.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,881.90 : 1,230,800.36 = 483,983.82 : x
  2. Step 2: Convert to fraction form
    891,881.90/1,230,800.36 = 483,983.82/x
  3. Step 3: Cross multiply
    891,881.90x = 1,230,800.36 × 483,983.82
  4. Step 4: Simplify right side
    891,881.90x = 595,687,457,470.26
  5. Step 5: Solve for x
    x = 595,687,457,470.26/891,881.90
  6. Step 6: Final answer
    x = 667,899.48

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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.