Home / 1,218,123.84-1,680,973.02-701,878.71

Finding the Fourth Proportional to 1,218,123.84, 1,680,973.02 and 701,878.71

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Solution

The fourth proportional to 1,218,123.84, 1,680,973.02 and 701,878.71 is: 968,570.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,123.84 : 1,680,973.02 = 701,878.71 : x
  2. Step 2: Convert to fraction form
    1,218,123.84/1,680,973.02 = 701,878.71/x
  3. Step 3: Cross multiply
    1,218,123.84x = 1,680,973.02 × 701,878.71
  4. Step 4: Simplify right side
    1,218,123.84x = 1,179,839,174,822.40
  5. Step 5: Solve for x
    x = 1,179,839,174,822.40/1,218,123.84
  6. Step 6: Final answer
    x = 968,570.79

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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.