Home / 883,742.88-1,220,284.80-720,425.28

Finding the Fourth Proportional to 883,742.88, 1,220,284.80 and 720,425.28

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Solution

The fourth proportional to 883,742.88, 1,220,284.80 and 720,425.28 is: 994,773.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,742.88 : 1,220,284.80 = 720,425.28 : x
  2. Step 2: Convert to fraction form
    883,742.88/1,220,284.80 = 720,425.28/x
  3. Step 3: Cross multiply
    883,742.88x = 1,220,284.80 × 720,425.28
  4. Step 4: Simplify right side
    883,742.88x = 879,124,018,719.74
  5. Step 5: Solve for x
    x = 879,124,018,719.74/883,742.88
  6. Step 6: Final answer
    x = 994,773.52

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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.