Home / 1,270,722.60-1,753,612.16-689,952.69

Finding the Fourth Proportional to 1,270,722.60, 1,753,612.16 and 689,952.69

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Solution

The fourth proportional to 1,270,722.60, 1,753,612.16 and 689,952.69 is: 952,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,722.60 : 1,753,612.16 = 689,952.69 : x
  2. Step 2: Convert to fraction form
    1,270,722.60/1,753,612.16 = 689,952.69/x
  3. Step 3: Cross multiply
    1,270,722.60x = 1,753,612.16 × 689,952.69
  4. Step 4: Simplify right side
    1,270,722.60x = 1,209,909,423,558.95
  5. Step 5: Solve for x
    x = 1,209,909,423,558.95/1,270,722.60
  6. Step 6: Final answer
    x = 952,142.84

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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.