Home / 1,300,492.80-1,950,739.20-851,720.40

Finding the Fourth Proportional to 1,300,492.80, 1,950,739.20 and 851,720.40

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Solution

The fourth proportional to 1,300,492.80, 1,950,739.20 and 851,720.40 is: 1,277,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,492.80 : 1,950,739.20 = 851,720.40 : x
  2. Step 2: Convert to fraction form
    1,300,492.80/1,950,739.20 = 851,720.40/x
  3. Step 3: Cross multiply
    1,300,492.80x = 1,950,739.20 × 851,720.40
  4. Step 4: Simplify right side
    1,300,492.80x = 1,661,484,371,719.68
  5. Step 5: Solve for x
    x = 1,661,484,371,719.68/1,300,492.80
  6. Step 6: Final answer
    x = 1,277,580.60

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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.