Home / 880,459.20-1,320,688.80-820,972.80

Finding the Fourth Proportional to 880,459.20, 1,320,688.80 and 820,972.80

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Solution

The fourth proportional to 880,459.20, 1,320,688.80 and 820,972.80 is: 1,231,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,459.20 : 1,320,688.80 = 820,972.80 : x
  2. Step 2: Convert to fraction form
    880,459.20/1,320,688.80 = 820,972.80/x
  3. Step 3: Cross multiply
    880,459.20x = 1,320,688.80 × 820,972.80
  4. Step 4: Simplify right side
    880,459.20x = 1,084,249,582,064.64
  5. Step 5: Solve for x
    x = 1,084,249,582,064.64/880,459.20
  6. Step 6: Final answer
    x = 1,231,459.20

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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.