Home / 1,293,686.40-1,941,681.60-760,540.80

Finding the Fourth Proportional to 1,293,686.40, 1,941,681.60 and 760,540.80

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Solution

The fourth proportional to 1,293,686.40, 1,941,681.60 and 760,540.80 is: 1,141,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,686.40 : 1,941,681.60 = 760,540.80 : x
  2. Step 2: Convert to fraction form
    1,293,686.40/1,941,681.60 = 760,540.80/x
  3. Step 3: Cross multiply
    1,293,686.40x = 1,941,681.60 × 760,540.80
  4. Step 4: Simplify right side
    1,293,686.40x = 1,476,728,077,409.28
  5. Step 5: Solve for x
    x = 1,476,728,077,409.28/1,293,686.40
  6. Step 6: Final answer
    x = 1,141,488.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.