Home / 901,860.31-1,243,968.42-579,977.65

Finding the Fourth Proportional to 901,860.31, 1,243,968.42 and 579,977.65

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Solution

The fourth proportional to 901,860.31, 1,243,968.42 and 579,977.65 is: 799,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    901,860.31 : 1,243,968.42 = 579,977.65 : x
  2. Step 2: Convert to fraction form
    901,860.31/1,243,968.42 = 579,977.65/x
  3. Step 3: Cross multiply
    901,860.31x = 1,243,968.42 × 579,977.65
  4. Step 4: Simplify right side
    901,860.31x = 721,473,880,905.81
  5. Step 5: Solve for x
    x = 721,473,880,905.81/901,860.31
  6. Step 6: Final answer
    x = 799,984.07

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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.