Home / 869,553.77-1,199,983.12-482,427.88

Finding the Fourth Proportional to 869,553.77, 1,199,983.12 and 482,427.88

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Solution

The fourth proportional to 869,553.77, 1,199,983.12 and 482,427.88 is: 665,749.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,553.77 : 1,199,983.12 = 482,427.88 : x
  2. Step 2: Convert to fraction form
    869,553.77/1,199,983.12 = 482,427.88/x
  3. Step 3: Cross multiply
    869,553.77x = 1,199,983.12 × 482,427.88
  4. Step 4: Simplify right side
    869,553.77x = 578,905,308,411.36
  5. Step 5: Solve for x
    x = 578,905,308,411.36/869,553.77
  6. Step 6: Final answer
    x = 665,749.87

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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.