Home / 788,111-1,087,594.40-448,579.25

Finding the Fourth Proportional to 788,111, 1,087,594.40 and 448,579.25

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Solution

The fourth proportional to 788,111, 1,087,594.40 and 448,579.25 is: 619,040.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,111 : 1,087,594.40 = 448,579.25 : x
  2. Step 2: Convert to fraction form
    788,111/1,087,594.40 = 448,579.25/x
  3. Step 3: Cross multiply
    788,111x = 1,087,594.40 × 448,579.25
  4. Step 4: Simplify right side
    788,111x = 487,872,278,013.30
  5. Step 5: Solve for x
    x = 487,872,278,013.30/788,111
  6. Step 6: Final answer
    x = 619,040.06

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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.