Home / 1,135,901.40-1,703,353.56-425,431

Finding the Fourth Proportional to 1,135,901.40, 1,703,353.56 and 425,431

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Solution

The fourth proportional to 1,135,901.40, 1,703,353.56 and 425,431 is: 637,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,901.40 : 1,703,353.56 = 425,431 : x
  2. Step 2: Convert to fraction form
    1,135,901.40/1,703,353.56 = 425,431/x
  3. Step 3: Cross multiply
    1,135,901.40x = 1,703,353.56 × 425,431
  4. Step 4: Simplify right side
    1,135,901.40x = 724,659,408,384.36
  5. Step 5: Solve for x
    x = 724,659,408,384.36/1,135,901.40
  6. Step 6: Final answer
    x = 637,959.78

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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.