Home / 1,265,140.32-1,745,918.86-692,192.80

Finding the Fourth Proportional to 1,265,140.32, 1,745,918.86 and 692,192.80

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Solution

The fourth proportional to 1,265,140.32, 1,745,918.86 and 692,192.80 is: 955,239.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,140.32 : 1,745,918.86 = 692,192.80 : x
  2. Step 2: Convert to fraction form
    1,265,140.32/1,745,918.86 = 692,192.80/x
  3. Step 3: Cross multiply
    1,265,140.32x = 1,745,918.86 × 692,192.80
  4. Step 4: Simplify right side
    1,265,140.32x = 1,208,512,464,276.21
  5. Step 5: Solve for x
    x = 1,208,512,464,276.21/1,265,140.32
  6. Step 6: Final answer
    x = 955,239.86

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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.