Home / 1,298,417.31-1,791,908.60-717,628.01

Finding the Fourth Proportional to 1,298,417.31, 1,791,908.60 and 717,628.01

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Solution

The fourth proportional to 1,298,417.31, 1,791,908.60 and 717,628.01 is: 990,377.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,417.31 : 1,791,908.60 = 717,628.01 : x
  2. Step 2: Convert to fraction form
    1,298,417.31/1,791,908.60 = 717,628.01/x
  3. Step 3: Cross multiply
    1,298,417.31x = 1,791,908.60 × 717,628.01
  4. Step 4: Simplify right side
    1,298,417.31x = 1,285,923,790,172.20
  5. Step 5: Solve for x
    x = 1,285,923,790,172.20/1,298,417.31
  6. Step 6: Final answer
    x = 990,377.89

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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.