Home / 769,881.20-1,154,821.80-208,985.20

Finding the Fourth Proportional to 769,881.20, 1,154,821.80 and 208,985.20

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Solution

The fourth proportional to 769,881.20, 1,154,821.80 and 208,985.20 is: 313,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,881.20 : 1,154,821.80 = 208,985.20 : x
  2. Step 2: Convert to fraction form
    769,881.20/1,154,821.80 = 208,985.20/x
  3. Step 3: Cross multiply
    769,881.20x = 1,154,821.80 × 208,985.20
  4. Step 4: Simplify right side
    769,881.20x = 241,340,664,837.36
  5. Step 5: Solve for x
    x = 241,340,664,837.36/769,881.20
  6. Step 6: Final answer
    x = 313,477.80

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1.5x scale

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.