Home / 1,188,016.80-1,779,400.80-477,679.20

Finding the Fourth Proportional to 1,188,016.80, 1,779,400.80 and 477,679.20

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Solution

The fourth proportional to 1,188,016.80, 1,779,400.80 and 477,679.20 is: 715,463.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,016.80 : 1,779,400.80 = 477,679.20 : x
  2. Step 2: Convert to fraction form
    1,188,016.80/1,779,400.80 = 477,679.20/x
  3. Step 3: Cross multiply
    1,188,016.80x = 1,779,400.80 × 477,679.20
  4. Step 4: Simplify right side
    1,188,016.80x = 849,982,750,623.36
  5. Step 5: Solve for x
    x = 849,982,750,623.36/1,188,016.80
  6. Step 6: Final answer
    x = 715,463.58

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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.