Home / 1,347,534.80-2,021,302.20-786,280.40

Finding the Fourth Proportional to 1,347,534.80, 2,021,302.20 and 786,280.40

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Solution

The fourth proportional to 1,347,534.80, 2,021,302.20 and 786,280.40 is: 1,179,420.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,534.80 : 2,021,302.20 = 786,280.40 : x
  2. Step 2: Convert to fraction form
    1,347,534.80/2,021,302.20 = 786,280.40/x
  3. Step 3: Cross multiply
    1,347,534.80x = 2,021,302.20 × 786,280.40
  4. Step 4: Simplify right side
    1,347,534.80x = 1,589,310,302,336.88
  5. Step 5: Solve for x
    x = 1,589,310,302,336.88/1,347,534.80
  6. Step 6: Final answer
    x = 1,179,420.60

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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.