Home / 898,486.66-1,239,917.64-490,591.36

Finding the Fourth Proportional to 898,486.66, 1,239,917.64 and 490,591.36

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Solution

The fourth proportional to 898,486.66, 1,239,917.64 and 490,591.36 is: 677,019.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,486.66 : 1,239,917.64 = 490,591.36 : x
  2. Step 2: Convert to fraction form
    898,486.66/1,239,917.64 = 490,591.36/x
  3. Step 3: Cross multiply
    898,486.66x = 1,239,917.64 × 490,591.36
  4. Step 4: Simplify right side
    898,486.66x = 608,292,881,295.59
  5. Step 5: Solve for x
    x = 608,292,881,295.59/898,486.66
  6. Step 6: Final answer
    x = 677,019.38

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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.