Home / 1,423,354.10-1,964,179.80-811,703.72

Finding the Fourth Proportional to 1,423,354.10, 1,964,179.80 and 811,703.72

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Solution

The fourth proportional to 1,423,354.10, 1,964,179.80 and 811,703.72 is: 1,120,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,354.10 : 1,964,179.80 = 811,703.72 : x
  2. Step 2: Convert to fraction form
    1,423,354.10/1,964,179.80 = 811,703.72/x
  3. Step 3: Cross multiply
    1,423,354.10x = 1,964,179.80 × 811,703.72
  4. Step 4: Simplify right side
    1,423,354.10x = 1,594,332,054,680.36
  5. Step 5: Solve for x
    x = 1,594,332,054,680.36/1,423,354.10
  6. Step 6: Final answer
    x = 1,120,123.28

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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.