Home / 1,086,881.69-1,628,508.20-478,764

Finding the Fourth Proportional to 1,086,881.69, 1,628,508.20 and 478,764

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Solution

The fourth proportional to 1,086,881.69, 1,628,508.20 and 478,764 is: 717,346.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,881.69 : 1,628,508.20 = 478,764 : x
  2. Step 2: Convert to fraction form
    1,086,881.69/1,628,508.20 = 478,764/x
  3. Step 3: Cross multiply
    1,086,881.69x = 1,628,508.20 × 478,764
  4. Step 4: Simplify right side
    1,086,881.69x = 779,671,097,470.98
  5. Step 5: Solve for x
    x = 779,671,097,470.98/1,086,881.69
  6. Step 6: Final answer
    x = 717,346.79

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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.