Home / 780,513.60-1,170,521.28-247,909.98

Finding the Fourth Proportional to 780,513.60, 1,170,521.28 and 247,909.98

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Solution

The fourth proportional to 780,513.60, 1,170,521.28 and 247,909.98 is: 371,785.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,513.60 : 1,170,521.28 = 247,909.98 : x
  2. Step 2: Convert to fraction form
    780,513.60/1,170,521.28 = 247,909.98/x
  3. Step 3: Cross multiply
    780,513.60x = 1,170,521.28 × 247,909.98
  4. Step 4: Simplify right side
    780,513.60x = 290,183,907,114.37
  5. Step 5: Solve for x
    x = 290,183,907,114.37/780,513.60
  6. Step 6: Final answer
    x = 371,785.84

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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.