Home / 1,499,220.83-2,068,941.08-820,142.75

Finding the Fourth Proportional to 1,499,220.83, 2,068,941.08 and 820,142.75

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Solution

The fourth proportional to 1,499,220.83, 2,068,941.08 and 820,142.75 is: 1,131,805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,499,220.83 : 2,068,941.08 = 820,142.75 : x
  2. Step 2: Convert to fraction form
    1,499,220.83/2,068,941.08 = 820,142.75/x
  3. Step 3: Cross multiply
    1,499,220.83x = 2,068,941.08 × 820,142.75
  4. Step 4: Simplify right side
    1,499,220.83x = 1,696,827,022,838.46
  5. Step 5: Solve for x
    x = 1,696,827,022,838.46/1,499,220.83
  6. Step 6: Final answer
    x = 1,131,805.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.