Home / 1,330,409.40-1,835,964.39-718,561.92

Finding the Fourth Proportional to 1,330,409.40, 1,835,964.39 and 718,561.92

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Solution

The fourth proportional to 1,330,409.40, 1,835,964.39 and 718,561.92 is: 991,615.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,409.40 : 1,835,964.39 = 718,561.92 : x
  2. Step 2: Convert to fraction form
    1,330,409.40/1,835,964.39 = 718,561.92/x
  3. Step 3: Cross multiply
    1,330,409.40x = 1,835,964.39 × 718,561.92
  4. Step 4: Simplify right side
    1,330,409.40x = 1,319,254,097,130.03
  5. Step 5: Solve for x
    x = 1,319,254,097,130.03/1,330,409.40
  6. Step 6: Final answer
    x = 991,615.14

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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.