Home / 1,039,428.80-1,558,682.40-478,635.20

Finding the Fourth Proportional to 1,039,428.80, 1,558,682.40 and 478,635.20

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Solution

The fourth proportional to 1,039,428.80, 1,558,682.40 and 478,635.20 is: 717,740.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,428.80 : 1,558,682.40 = 478,635.20 : x
  2. Step 2: Convert to fraction form
    1,039,428.80/1,558,682.40 = 478,635.20/x
  3. Step 3: Cross multiply
    1,039,428.80x = 1,558,682.40 × 478,635.20
  4. Step 4: Simplify right side
    1,039,428.80x = 746,040,262,260.48
  5. Step 5: Solve for x
    x = 746,040,262,260.48/1,039,428.80
  6. Step 6: Final answer
    x = 717,740.61

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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.