Home / 1,316,597.63-1,816,390.33-765,221.72

Finding the Fourth Proportional to 1,316,597.63, 1,816,390.33 and 765,221.72

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Solution

The fourth proportional to 1,316,597.63, 1,816,390.33 and 765,221.72 is: 1,055,706.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,597.63 : 1,816,390.33 = 765,221.72 : x
  2. Step 2: Convert to fraction form
    1,316,597.63/1,816,390.33 = 765,221.72/x
  3. Step 3: Cross multiply
    1,316,597.63x = 1,816,390.33 × 765,221.72
  4. Step 4: Simplify right side
    1,316,597.63x = 1,389,941,321,518.96
  5. Step 5: Solve for x
    x = 1,389,941,321,518.96/1,316,597.63
  6. Step 6: Final answer
    x = 1,055,706.99

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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.