Home / 781,000.36-1,170,163.22-426,263.29

Finding the Fourth Proportional to 781,000.36, 1,170,163.22 and 426,263.29

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Solution

The fourth proportional to 781,000.36, 1,170,163.22 and 426,263.29 is: 638,665.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,000.36 : 1,170,163.22 = 426,263.29 : x
  2. Step 2: Convert to fraction form
    781,000.36/1,170,163.22 = 426,263.29/x
  3. Step 3: Cross multiply
    781,000.36x = 1,170,163.22 × 426,263.29
  4. Step 4: Simplify right side
    781,000.36x = 498,797,623,994.19
  5. Step 5: Solve for x
    x = 498,797,623,994.19/781,000.36
  6. Step 6: Final answer
    x = 638,665.04

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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.