Home / 1,119,402.40-1,679,103.60-671,504.80

Finding the Fourth Proportional to 1,119,402.40, 1,679,103.60 and 671,504.80

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Solution

The fourth proportional to 1,119,402.40, 1,679,103.60 and 671,504.80 is: 1,007,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,402.40 : 1,679,103.60 = 671,504.80 : x
  2. Step 2: Convert to fraction form
    1,119,402.40/1,679,103.60 = 671,504.80/x
  3. Step 3: Cross multiply
    1,119,402.40x = 1,679,103.60 × 671,504.80
  4. Step 4: Simplify right side
    1,119,402.40x = 1,127,526,127,097.28
  5. Step 5: Solve for x
    x = 1,127,526,127,097.28/1,119,402.40
  6. Step 6: Final answer
    x = 1,007,257.20

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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.