Home / 1,298,412.24-1,791,901.61-717,622.87

Finding the Fourth Proportional to 1,298,412.24, 1,791,901.61 and 717,622.87

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Solution

The fourth proportional to 1,298,412.24, 1,791,901.61 and 717,622.87 is: 990,370.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,412.24 : 1,791,901.61 = 717,622.87 : x
  2. Step 2: Convert to fraction form
    1,298,412.24/1,791,901.61 = 717,622.87/x
  3. Step 3: Cross multiply
    1,298,412.24x = 1,791,901.61 × 717,622.87
  4. Step 4: Simplify right side
    1,298,412.24x = 1,285,909,581,922.31
  5. Step 5: Solve for x
    x = 1,285,909,581,922.31/1,298,412.24
  6. Step 6: Final answer
    x = 990,370.81

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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.