Home / 1,380,599.98-1,905,209.80-760,393.24

Finding the Fourth Proportional to 1,380,599.98, 1,905,209.80 and 760,393.24

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Solution

The fourth proportional to 1,380,599.98, 1,905,209.80 and 760,393.24 is: 1,049,332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,599.98 : 1,905,209.80 = 760,393.24 : x
  2. Step 2: Convert to fraction form
    1,380,599.98/1,905,209.80 = 760,393.24/x
  3. Step 3: Cross multiply
    1,380,599.98x = 1,905,209.80 × 760,393.24
  4. Step 4: Simplify right side
    1,380,599.98x = 1,448,708,649,978.55
  5. Step 5: Solve for x
    x = 1,448,708,649,978.55/1,380,599.98
  6. Step 6: Final answer
    x = 1,049,332.66

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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.