Home / 1,225,366.72-1,690,991.04-688,822.72

Finding the Fourth Proportional to 1,225,366.72, 1,690,991.04 and 688,822.72

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Solution

The fourth proportional to 1,225,366.72, 1,690,991.04 and 688,822.72 is: 950,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,366.72 : 1,690,991.04 = 688,822.72 : x
  2. Step 2: Convert to fraction form
    1,225,366.72/1,690,991.04 = 688,822.72/x
  3. Step 3: Cross multiply
    1,225,366.72x = 1,690,991.04 × 688,822.72
  4. Step 4: Simplify right side
    1,225,366.72x = 1,164,793,047,668.43
  5. Step 5: Solve for x
    x = 1,164,793,047,668.43/1,225,366.72
  6. Step 6: Final answer
    x = 950,566.90

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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.