Home / 1,918,348.40-2,875,539.72-719,425.28

Finding the Fourth Proportional to 1,918,348.40, 2,875,539.72 and 719,425.28

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Solution

The fourth proportional to 1,918,348.40, 2,875,539.72 and 719,425.28 is: 1,078,394.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,348.40 : 2,875,539.72 = 719,425.28 : x
  2. Step 2: Convert to fraction form
    1,918,348.40/2,875,539.72 = 719,425.28/x
  3. Step 3: Cross multiply
    1,918,348.40x = 2,875,539.72 × 719,425.28
  4. Step 4: Simplify right side
    1,918,348.40x = 2,068,735,968,212.12
  5. Step 5: Solve for x
    x = 2,068,735,968,212.12/1,918,348.40
  6. Step 6: Final answer
    x = 1,078,394.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.