Home / 1,142,127.84-1,575,546.81-774,480.66

Finding the Fourth Proportional to 1,142,127.84, 1,575,546.81 and 774,480.66

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Solution

The fourth proportional to 1,142,127.84, 1,575,546.81 and 774,480.66 is: 1,068,383.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,142,127.84 : 1,575,546.81 = 774,480.66 : x
  2. Step 2: Convert to fraction form
    1,142,127.84/1,575,546.81 = 774,480.66/x
  3. Step 3: Cross multiply
    1,142,127.84x = 1,575,546.81 × 774,480.66
  4. Step 4: Simplify right side
    1,142,127.84x = 1,220,230,533,269.69
  5. Step 5: Solve for x
    x = 1,220,230,533,269.69/1,142,127.84
  6. Step 6: Final answer
    x = 1,068,383.49

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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.