Home / 1,275,316.20-1,759,868.90-731,424.04

Finding the Fourth Proportional to 1,275,316.20, 1,759,868.90 and 731,424.04

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Solution

The fourth proportional to 1,275,316.20, 1,759,868.90 and 731,424.04 is: 1,009,326.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,316.20 : 1,759,868.90 = 731,424.04 : x
  2. Step 2: Convert to fraction form
    1,275,316.20/1,759,868.90 = 731,424.04/x
  3. Step 3: Cross multiply
    1,275,316.20x = 1,759,868.90 × 731,424.04
  4. Step 4: Simplify right side
    1,275,316.20x = 1,287,210,420,708.36
  5. Step 5: Solve for x
    x = 1,287,210,420,708.36/1,275,316.20
  6. Step 6: Final answer
    x = 1,009,326.49

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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.